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Piedmont Orthopedic
Society |
| 2007 Minimally Invasive Unicompartmental Knee Arthroplasty: A Comparison of All-polyethylene and Metal-backed Tibial Components, Jeff D. Almand, M.D., Mississippi Orthopaedics and Sports Medicine, Jackson, MS | |||||||||||||||||||||||||||||||||||||
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Purpose:
This study compares the clinical and radiographic results of
unicompartmental knee arthroplasty with all polyethylene and metal backed
tibial implants.
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| 2007 Operative Repair of Bilateral Spontaneous Gluteus Medius and Minimus Tendon Ruptures: A Case Report, David A. Fisher, M.D.1, Jeff D. Almand, M.D.2, Melanie Watts, ATC/L, CSCS1 , Mississippi Orthopaedics and Sports Medicine, Jackson, MS | |||||||||||||||||||||||||||||||||||||
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Investigation performed at the
Indiana Orthopaedic Hospital, Indianapolis, Indiana. Spontaneous avulsion
or rupture of the gluteus medius and minimus tendons is a debilitating
source of lateral hip pain and is thought to be an uncommon yet often under
recognized or misdiagnosed condition.1-3 Patients presenting
with ruptures of the gluteus medius or minimus tendons are often diagnosed
as having “greater trochanteric pain syndrome”(GTPS) which is a term often
used to denote a common clinical syndrome that is usually classified as
trochanteric bursitis.1, 4 Patients with lateral hip pain or
GTPS and gluteal ruptures are often treated for bursitis and therefore go
undiagnosed. This is thought to be due to the difficulty in diagnosing this
condition by routine history and physical examination and magnetic resonance
imaging (MRI) may be necessary for an accurate diagnosis.2, 5-7
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| 2007 Medical Malpractice Crisis- Fact or Myth?, David E. Attarian, M.D., F.A.C.S., Duke Medical Center, Durham, NC | |||||||||||||||||||||||||||||||||||||
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The medical
malpractice crisis inevitably produces a contentious discussion among the
various stakeholders, i.e. physicians, attorneys, patients, consumer groups,
insurance companies, and government officials. The crisis has been defined
as a medicolegal environment of increasing claims and lawsuits, increasing
settlements and awards, increasing insurance premiums, physicians and
hospitals limiting access to high risk services to reduce liability,
unnecessary higher healthcare costs (defensive medicine), adversarial
relationships between physicians and patients, and a dysfunctional legal
system that consumes healthcare dollars that should ultimately be directed
to injured patients or improving the overall quality of care. Many argue
that the crisis is a myth. On average, medical malpractice premiums only
represent 4% of physician revenues; and the vast majority of cases that go
to court are found in favor of the defendant doctor. Others add that the
real crisis is the prevalence of negligent care, the failure of the medical
profession to police its own, and poor economic decisions by the insurance
companies that lead to higher malpractice premiums. Attorneys believe that
every patient has the right to a jury trial; and that the threat of such
legal action functions as an incentive for physicians and hospitals to
improve the quality of service. Key points that favor the reality of the
crisis include: physicians have a 1:6 chance of being sued in any given year
(higher for some specialties), more than 80% of claims are without merit or
frivolous, defensive medicine costs the U.S. more than $120 billion per year
and adds more than 3 million people to the list of “uninsured”, and more
than 50% of the dollars spent on medical malpractice actions are consumed by
the legal system. Given the ongoing escalating costs of the healthcare
economy (> 15% GDP), the current situation will be unsustainable. Some short
term solutions are: tort reform to limit non-economic damages, clear
definition of medical experts combined with a “certificate of merit” when a
lawsuit is filed, and more rapid acknowledgement and treatment of injuries
from medical errors. Long term strategies may include: specialized
healthcare courts for timely, unbiased, evidence based resolution of
disputes and provision of fair compensation to the injured patient,
transparent quality assurance programs and sharing of information within the
healthcare system to reduce mistakes, and more stringent oversight by the
medical profession of its members. All physicians should be politically
active by articulating the problems and potential solutions cited to their
patients and government representatives. By advocating for cost effective
and fair medical malpractice dispute resolution, the described crisis can be
reduced or eliminated.
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| 2007 MOBILE BEARING UNICOMPARTMENTAL KNEE ARTHROPLASTY: INDICATIONS AND OUTCOMES, Keith R. Berend, MD, Adloph V. Lombardi, Jr., MD, FACS, New Albany, OH | |||||||||||||||||||||||||||||||||||||
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Unicompartmental
knee arthroplasty (UKA) has seen an increasing level of interest in recent
years built upon better implant design, minimally invasive techniques, and
improved outcomes. Into the second decade, the reports of the Oxford UKA
appear to rival that of traditional total knee arthroplasty, despite
somewhat more liberal indications commonly referred to as the Oxford
Indications. These indications for UKA continue to be debated. The purpose
of this study is to report the early outcomes and revisions in a consecutive
series of UKA implanted for anteromedial osteoarthritis. Between July 2004
and December 2005 316 medial, Oxford Mobile Bearing UKA (Biomet, Inc.,
Warsaw, IN) were implanted by 2 surgeons utilizing an exacting surgical
technique. The
indications
in each knee were: complete bone-on-bone disease medially on a weight
bearing radiograph, functionally intact ACL and MCL, and correctible varus
deformity. Correctability of the deformity is examined using a
valgus-stress radiograph in each UKA candidate. Using these criteria, the
indications for UKA can be as high as 30-35% of osteoarthritic knees. The
demographics and patient characteristics were reviewed to examine the
indications and their potential influences on outcomes. 40% of patients had
a BMI greater than 32 and 25% had a BMI greater than 35. Despite this
increased BMI, no increase in failure was noted. 54% of patients were
younger than 60 at index surgery, and 15% younger than 50. Again no
increase in failure was noted in these younger, active patients. Only 68%
of patients reported isolated medial sided pain pre-operatively, with 21%
reporting global knee pain, and 6.1% reporting anterior knee pain. No
difference in knee scores or post-operative pain was noted between patients
with and without pre-operative anterior knee pain or isolated medial sided
pain. 43% of knees had pre-operative radiographic evidence of
patellofemoral DJD. Despite this, no difference in pain or outcomes was
noted between those with and those without radiographic evidence of
patellofemoral DJD. In this initial series there were 5 failures (1.6%).
No relationship could be established between any outcome measure, including
failure, and any of the patient demographics examined. We would therefore
conclude that the so-called Oxford indications for UKA appear to be a safe
and accurate measure of candidacy for UKA. Excellent early results are seen
with liberal indications using this mobile bearing partial knee replacement.
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| 2007 Peri-articular Injections Containing a Corticosteroid during TKA: Preliminary Results, Christian P. Christensen, MD, Cale A. Jacobs, PhD, Lexington Clinic Sports Medicine Clinic, Lexington, KY | |||||||||||||||||||||||||||||||||||||
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Multimodal pain
control protocols that include intra-operative, peri-articular injections
have been reported to decrease pain and improve early outcomes following
TKA. While injections containing a corticosteroid have been demonstrated to
be safe and effective, to our knowledge no randomized trials have been
performed to evaluate the specific role of the corticosteroid in early
postoperative outcomes. The purpose of this study was to compare pain, range
of motion, narcotic consumption, length of hospital stay, as well as Knee
Society Scores between 40 patients randomly assigned to receive peri-articular
injections consisting of bupivacaine HCl (80 mg), morphine (4 mg),
epinephrine (300 mcg), clonidine (100 mcg), cefuroxime (750 mg), and normal
saline either with or without the inclusion of methylprednisolone acetate
(40 mg). During the hospital stay, there were no differences in pain,
narcotic consumption, or range of motion; however, the length of hospital
stay was significantly reduced for patients that received the corticosteroid
(2.6 days) compared to the group of patients that did not received the
corticosteroid (3.2 days, p=.04). There were no differences in Knee Society
Score or range of motion between the two groups preoperatively, or at the 6-
and 12-week follow-ups. Furthermore, 82% of the patients that received the
corticosteroid were discharged home compared to 72% of the group of patients
that did not receive the corticosteroid. There were also no differences in
complication rates between groups, with one patient that did not receive the
corticosteroid being readmitted to rule out infection, and one patient that
did receive the corticosteroid undergoing manipulation under anesthesia. Our
preliminary results indicate that the inclusion of corticosteroid resulted
in a slight decrease in length of hospital stay; no improvements in pain,
range of motion, or early clinical outcomes; and no increased risk of
infection or other complication. We conclude that peri-articular injections
containing a corticosteroid appear to be safe; however, our preliminary
results question the use of this medication as part of a multimodal pain
control protocol as it does not appear to provide a measurable benefit.
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| 2007 The Effect of Evolving Technique on Outcome and Limb Alignment in Total Knee Arthoplasty, Robert Friedman, M.D., Orthopaedic Associates of the Greater Lehigh Valley, Easton, PA | |||||||||||||||||||||||||||||||||||||
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Purpose:
Within the last five years several variations in technique to perform a
total knee replacement have been introduced. While the procedure is touted
as being highly successful in improving the quality of life for many
patients, it also can be significantly painful, expensive, labor intensive,
and resource consuming. The purpose of this study is to determine what
effect specific changes in technique would have on patient’s early mobility,
pain control, and component alignment and sizing.
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| 2007 Long-Term Outcomes of High-Grade Spondylolisthesis Managed with Posterior Decompression, Posterolateral Fusion and Fibular Dowel Strut Graft, Christopher G. Furey, M.D., George H. Thompson, M.D., Henry H. Bohlman, M.D., Department of Orthopedic Surgery, Case Western Reserve University, Cleveland, Ohio | |||||||||||||||||||||||||||||||||||||
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Purpose:
To evaluate the
long-term results of pediatric patients with high grade spondylolisthesis
treated with posterior decompression, posterolateral fusion and fibular
dowel strut graft.
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| 2007 Ankle Arthrodedsis with an Anatomically Contoured Anterior Plate, Changan Guo, William R Barfield, Langdon A. Hartsock, Medical University of South Carolina, Charleston, SC | |||||||||||||||||||||||||||||||||||||
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Background:
More than 40 fusion
techniques for the ankle joint have been reported.
The purpose of this
retrospective study was to review our preliminary clinical and radiographic
results by using an anatomically contoured anterior plate for ankle
arthrodesis.
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| 2007 Anomalous Thenar Musculature Associated With Aberrant Median Nerve Motor Branch Take-off, An Anatomic and Clinical Study, Gary M. Lourie M.D., Atlanta, GA | |||||||||||||||||||||||||||||||||||||
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Anatomic variation involving the median nerve and intrinsic muscles exist in
the hand. Knowledge of this is important to avoid iatrogenic injury during
carpal tunnel release. The purpose of this study is to describe a previous
underreported relationship between an aberrant course of the median nerve
motor branch and anomalous thenar musculature.
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| 2007 CMC Arthroplasty Utilizing a Artelon Bioabsorbable Spacer Early Clinical Experience, Richard S. Moore, Jr., M.D., Wilmington Orthopaedic Group, Wilmington, NC | |||||||||||||||||||||||||||||||||||||
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Abstract:
Arthritis of the thumb carpometacarpal (CMC) joint in young active patients
is an increasingly common problem faced by the hand surgeon. Multiple
reconstructive procedures ranging from simple trapeziectomy to trapeziectomy
and tendon transfer for ligament reconstruction and interposition have been
reported with universally good results but primarily in a more aged
population. This report reviews the early clinical results of a single
surgeon’s experience with a limited trapeziectomy and bioabsorbable
interpositional implant for treatment of thumb CMC arthritis.
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| 2007 LUMBOSACRAL FUSIONS USING TRANS-AXIAL FIXATION, Richard J. Nasca M.D., Wilmington, NC | |||||||||||||||||||||||||||||||||||||
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Clinical and radiographic
data from a consecutive series of 26 patients treated with one and two level
lumbosacral interbody fusions using trans-axial fixation inserted thru a
presacral approach were reviewed.
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| 2007 Streamlining Outcomes Research in Orthopedic Surgery, Pietrobon R, Olson S, Richardson WJ, Moorman CT, Nunley J, Vail TP, Duke Medical Center, Durham, NC | |||||||||||||||||||||||||||||||||||||
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Analysis of clinical outcomes is of paramount importance for the establishment of evidence-based practice guidelines in Orthopedic Surgery. Despite its significance, collecting and analyzing clinical data with subsequent publication of scientific results is time and resource demanding. Barriers are increased when multiple sites are required to achieve a representative patient population. This presentation will demonstrate a series of Web applications developed by the Division of Orthopaedic Surgery at Duke University to streamline clinical research processes. The Web applications include activities of prospective data collection, project management, online writing of scientific articles, and overall project management. Each Web application will be demonstrated using examples of ongoing clinical projects involving Duke University and participating sites in academic and non-academic institutions.
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| 2007 SKIN COVERAGE/RESURFACING OF THE HAND, Sigurd Sandzen, M.D., Vero Beach, FL | |||||||||||||||||||||||||||||||||||||
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The
primary object of open wound care is to provide closure or coverage as soon
as possible.
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| 2007 RADIOGRAPHIC AND ANATOMIC PREDICTORS OF SCAPULAR NOTCHING IN THE DELTA III REVERSE TOTAL SHOULDER REPLACEMENT, Ryan W. Simovitch, M.D., Palm Beach Orthopaedic Institute, Palm Beach Gardens, FL | |||||||||||||||||||||||||||||||||||||
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Background:
The reverse DELTA III shoulder prosthesis can successfully relieve pain and
restore function in cuff tear arthropathy. The most frequently reported
radiographic complication is inferior scapular notching. The purpose of this
study was to evaluate the clinical relevance of notching and to determine
the anatomic and radiographic parameters that predispose to its occurrence.
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| 2007 Failed Darrach Procedure: Allograft Reconstruction, Sotereanos D.G.1, Giannoulis F.S.1, Payatakes A.H.1, Greenberg J.A.2, Weiser R.W.1 1Allegheny General Hospital, Pittsburgh, PA; 2Indiana Hand Center, Indianapolis, IN | |||||||||||||||||||||||||||||||||||||
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Background data:
The Darrach procedure
(excision of the distal ulna) has been the gold standard for surgical
treatment of DRUJ arthritis (DJD, RA, post-traumatic). Despite modifications
(Bower hemiresection, matched resection, wafer procedure) failure rates
remain high (7-48%). The typical cause of failure is painful radioulnar
impingement and instability leading to pain and loss of grip strength.
Failed distal ulna resection comprises a difficult reconstructive dilemma.
Several salvage techniques have been described (tenodesis, revision
resection, silicone capping, implant arthroplasty) with variable results.
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| 2007 The dynamic phases of peroneal and tibial intraneural ganglion formation: A new dimension added to the unifying articular theory, Robert J. SPINNER, Kimberly K. AMRAMI, Huan WANG, Bernd W. SCHEITHAUER, and Stephen W. CARMICHAEL, Mayo Clinic School of Medicine, Departments of Neurologic Surgery, Orthopedics, Anatomy, Radiology and Laboratory Medicine, Rochester, MN. | |||||||||||||||||||||||||||||||||||||
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Object:
The pathogenesis of intraneural ganglia has been controversial for more than
a century. Recently we have identified a stereotypic pattern of occurrence
of peroneal and tibial intraneural ganglia and based on an understanding of
their pathogenesis, provided a unifying explanation. Atypical features
occasionally observed have offered an opportunity to further verify and
expand upon our proposed theory.
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| 2007 Carpal Tunnel Release: An Evidence Based Review of a Single Surgeon’s Experience with Endoscopic Carpal Tunnel Release, James R. Urbaniak, M.D., Vani Sebesan, M.D., J. Mack Aldridge, M.D., Duke Medical Center, Durham, NC | |||||||||||||||||||||||||||||||||||||
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Background:
Although its introduction was over twenty years ago, there remains continual
debate and controversy regarding endoscopic approach to carpal tunnel
release. A number of meta-analyses have attempted to review the large body
of literature on open versus endoscopic techniques, including both
retrospective and prospective studies with varying levels of evidence.
Unfortunately no definitive conclusions can be drawn from these studies and
controversy still remains in regards to the increased technical difficulty,
cost, and complication rates for the endoscopic technique. This
retrospective review attempted to examine the outcomes of a single surgeon’s
experience with the endoscopic technique over the last 15 years to better
understand effects of a surgeon’s experience on outcomes and complication
rates.
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| 2007 Surgical Electrophysiological Monitoring. A Survey and Summary of the Piedmont Orthopedic Society Membership, David C. Urquia, M.D., West End Orthopaedic Clinic, Richmond, VA | |||||||||||||||||||||||||||||||||||||
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A presentation of the current EP techniques available (EMG,SSEP,MEP) and
common applications in Orthopedic surgery. A review of recent literature
and case reports presented. Data presented from surveys of the national
Piedmont Society membership.
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Abstracts 2006 |
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| 2006 Three Cast Techniques for the Treatment of Extra-Articular Metacarpal Fractures - Comparison of Short-Term Outcomes and Final Fracture Alignments, Lieutenant Commander Jeff Tavassoli, DO1, Commander Robert T. Ruland, MD, Lieutenant Commander Christopher J. Hogan, MD1 and Commander David L. Cannon, MD, Bone and Joint/Sports Medicine Institute, Charette Health Sciences Center, 620 John Paul Jones Circle, Portsmouth, VA 23708. E-mail address for C.J. Hogan: cjhogan@mar.med.navy.mil | |||||||||||||||||||||||||||||||||||||
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Investigation performed at the Bone and Joint/Sports Medicine Institute,
Charette Health Sciences Center, Portsmouth, Virginia
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2006 Early radiographic results following total hip arthroplasty utilizing a tapered, proximally-coated femoral stem with immediate postoperative weight bearing, Christian P. Christensen, MD & Cale Jacobs, PhD, ATC, Lexington Clinic, Lexington, KY |
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Immediate weight-bearing following primary THA has become widely used to
improve early function, and as part of DVT prophylactic protocols. Previous
investigations of several implant designs have reported that early
weight-bearing does not result in altered fixation of the femoral component.
The purpose of this study was to evaluate early subsidence of a proximally-hydroxyapatite
coated femoral component in patients allowed immediate postoperative
weight-bearing. Over a two year period, a single surgeon performed primary
THA on 138 patients (158 hips) with a femoral component with these design
characteristics. Patients were, on average, 61.4 ± 11.5 years old at the
time of surgery with an average BMI of 30.2 ± 7.1. Implants with these
design characteristics were used on all patients during the study period
that were not wheelchair bound prior to surgery or on chronic oral
prednisone > 5 mg/day. Patients undergoing THA for displaced femoral neck
fractures were also excluded. Preoperatively, 138 of the 158 hips were
diagnosed with osteoarthritis, 16 with avascular necrosis, and four with
posttraumatic arthritis. Approximately two to six hours after surgery,
patients began weight bearing as tolerated. Once discharged from the
hospital, patients were allowed to progress from a walker to a cane to using
no assistive devices as soon as they were comfortable. Radiographs were
taken immediately post-operative and at the 6-week follow-up. Mean
subsidence was 0.8±2.3 mm and 6 of the 158 hips (3.8%) demonstrated
subsidence > 3 mm. One patient underwent revision THA after presenting with
23 mm of subsidence at the 6-week follow-up. It appears that the use of an
uncemented, tapered femoral stem with a proximal hydroxyapatite coating may
not result in improved early subsidence when used in combination with
immediate weight bearing protocols.
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| 2006 INTRA-ARTICULAR INJECTIONS CONTAINING A CORTICOSTEROID DURING TOTAL KNEE ARTHROPLASTY, Christian P. Christensen, MD & Cale Jacobs, PhD, ATC, Lexington Clinic, Lexington, KY | |||||||||||||||||||||||||||||||||||||
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The principles of
minimally invasive surgery have had lead to changes in not only surgical
technique, but perhaps more importantly, to perioperative pain control. A
multimodal approach to pain control including intra-articular injections of
bupivacaine, morphine, and epinephrine has been demonstrated to be very
effective during primary total knee arthroplasty. The purpose of this
retrospective study was to compare pain, range of motion, narcotic
consumption, and manipulation rates for patients receiving peri-articular
injections either with or without the inclusion of a corticosteroid and
antibiotic. Over a six month period, 50 primary, PCL-retaining TKAs (44
patients) were performed by a single surgeon. A retrospective chart review
was performed to compare a group that received an peri-articular injection
consisting of 80 mg marcaine, 4 mg morphine, 300 µg epinephrine, and 100 µg
clonidine (NS, n = 30); and a group receiving the same injection with the
addition of a corticosteroid (40 mg methylprednisolone or kenalog) and an
antibiotic (750 mg Zinacef; S, n = 20). Patients were excluded from further
analysis if they had documented preoperative narcotic use. The two groups
were created as the surgeon gradually changed his practice from giving
injections without a steroid, and then to the current practice of using a
peri-articular injection with a steroid. The groups were not purely
consecutive, with some mixing of the two groups. Pain scores were higher for
the group that did not received the steroid on postoperative day 1 and on
the day of discharge; however, these differences did not reach statistical
significance (p = 0.13). The length of hospital stay for the steroid
group was significantly lower than the group that did not receive the
steroid (p = 0.03). The amount of narcotic pain medication consumed
did not differ between groups (p = 0.89). Three of 30 knees (10%) in
the group that did not receive the steroid required manipulation under
anesthesia, compared to 1 of 20 (5%) in the steroid group. At 6 week
follow-up, no patients in either group suffered a postoperative infection or
DVT. From these results, we conclude that the inclusion of a corticosteroid
and antibiotic with a peri-articular injection of marcaine, epinephrine,
clonidine, and morphine may improve early outcomes following primary total
knee arthroplasty. Large prospective clinical trials are necessary to
confirm improved early outcomes to determine if this treatment results in
reduced health care costs associated with this procedure.
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2006 Results of Open Reduction and Internal Fixation of the Symptomatic Type II Accessory Navicular, Jonathan R. Saluta, MD and Mark E Easley, MD, Duke University Medical Center, Durham, NC |
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Introduction:
Currently, the modified
Kidner procedure is recommended to treat the symptomatic accessory navicular
that fails nonoperative management. Based on anecdotal evidence, some foot
and ankle specialists have cautioned that excision of the accessory
navicular can lead to a progressive increase in pain and loss of the
longitudinal arch. As a result, they have recommended open reduction and
internal fixation (ORIF) of the symptomatic accessory navicular as a
surgical alternative. To our knowledge, the only references to this
surgical alternative in the orthopedic literature are two technique papers.
To substantiate this technique, we conducted a prospective study of ORIF of
the symptomatic type II accessory navicular.
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2006 Revision Tibiotalar Arthrodesis using Ring External Fixation, Mark Easley MD, Duke University Medical Center, Durham, NC |
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Background:
Contemporary recommendations for primary and revision ankle arthrodesis
favor internal compression techniques using screw and/or plate fixation,
with satisfactory outcomes being reported for the majority of patients. In
select patients, revision tibiotalar arthrodesis with internal fixation may
be limited or even contraindicated given insufficient bone stock to
adequately support implants, an abundance of avascular bone, or a history of
osteomyelitis. Recently, comparable outcomes of primary and revision
tibiotalar arthrodeses have been reported using external fixation, even in
situations where limb salvage is questionable. We report our experience
with ring external fixation for complex, revision ankle arthrodesis.
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2006 The Early U.S. Experience of Reverse Shoulder Arthroplasty: Indications, Technique, and Results, Spero G. Karas MD, Emory Healthcare Sports Medicine Center, Atlanta, GA, spero.karas@emoryhealthcare.org |
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Introduction:
To date, rotator cuff arthropathy (RCA) remains a difficult clinical entity
with no uniformly excellent surgical option. The recent approval of reverse
prosthetic technology offers a promising treatment modality for this
difficult problem. We discuss technical considerations and early results of
the first 462 consecutive patients treated with the Reverse Shoulder
Prosthesis (Encore Medical, Austin, TX, USA).
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| 2006 Latissimus Dorsi Transfer for the Management of Irreparable Rotator Cuff Tears, Spero G Karas MD+, AW Pearsall MD*, Sudhakar Madanogopal MD*, +Emory Healthcare Sports Medicine Center, Atlanta, GA USA, *University of South Alabama Dept. of Orthopaedics, Mobile, AL | |||||||||||||||||||||||||||||||||||||
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Introduction:
Massive, irreparable tears of the rotator cuff present a unique set of
reconstructive challenges to the orthopaedic surgeon. Numerous tendon
transfers have been described for reconstruction of irreparable rotator cuff
tears, including the trapezius, triceps, deltoid, and latissimus dorsi
musculotendinous units. We present the indications, technique, and outcomes
of latissimus dorsi transfer for the management of irreparable rotator cuff
tears.
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| 2006 A Three Dimensional Analysis of Scapular Kinematics in Patients with Multidirectional Shoulder Instability, Spero G. Karas MD+*, Charles A. Thigpen MS*, Darin A Padua PhD*, +Emory Healthcare Sports Medicine Center Atlanta, GA, *University of North Carolina Department of Exercise and Sports Science | |||||||||||||||||||||||||||||||||||||
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Objective: Scapular
muscle control is thought to play a vital role in shoulder stability. The
purpose of this study was to evaluate and compare scapular kinematic
differences in patients with and without multidirectional instability (MDI)
of the shoulder.
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2006 Surgical Treatment for the Congenital Retroflexible Thumb Deformity, Zhongyu Li, MD, PhD, L. Andrew Koman, MD, Wake Forest University School of Medicine, Winston-Salem, NC |
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Retroflexible thumb is an
uncommon congenital anomaly. Patients often present with trigger thumb
symptoms associated with a flexed thumb interphalangeal (IP) and a
hyperextendible thumb metacarpophalangeal (MP) deformities. Neither the
pathology of the deformity nor the treatment protocol has been well defined.
The purpose of this study is to describe a single technique for treating
pediatric retroflexible thumbs and report our results in a consecutive
series of patients.
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| 2006 OUTCOMES IN PATIENTS WITH A HISTORY OF KNEE STIFFNESS UNDERGOING CONTRALATERAL PRIMARY TOTAL KNEE ARTHROPLASTY, Jason E. Lang, M.D., Duke University Medical Center, Durham, NC | |||||||||||||||||||||||||||||||||||||
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This study seeks to
evaluate the clinical outcomes of a second primary total knee arthroplasty (TKA),
in patients whose initial (contralateral) primary TKA was complicated by
stiffness. We retrospectively compared the pre- and post-operative ROM and
knee society scores (KSS) from a study group of 15 patients to an
age-matched control group. Statistical analysis did not reveal a significant
difference in final post-operative ROM, or KSS between the two groups.
However, there was a statistically significant higher rate of closed
manipulation in the study group. Therefore, while the study group did show
a higher rate of early stiffness, eventual functional outcome was comparable
to a non-stiffness control group.
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| 2006 Pisotriquetral Arthritis Following Wrist and Intercarpal Arthrodesis, Gary M. Lourie, MD, The Hand and Upper Extremity Center of Georgia, Atlanta, GA | |||||||||||||||||||||||||||||||||||||
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A retrospective
review identified nine patients with pisotriquetral arthritis requiring
pisiform excision following wrist and intercarpal arthrodesis. The second
part of the study utilized six cadaver wrists to assess the alteration in
pressure and kinematics of the pisotriquetral joint following four-corner
and wrist fusion. Nine patients (seven male, two female) with average age of
41.7, none with pre-operative pisotriquetral arthrosis, underwent four
corner (six patients) or wrist fusion (three patients). At an average of
fifteen months postoperative, patients presented with volar-ulnar wrist
pain, which was resolved with pisiform excision. Cadaveric studies revealed
maximum pisotriquetral joint pressure in full extension with progressive
pressure decrease throughout flexion. The pressure across the pisotriquetral
joint did not change with simulated fusion but fluoroscopy revealed
diminished excursion of the pisiform across a smaller area following fusion.
It is our premise that this constant loading of the joint contributes to the
development of arthrosis. Patients undergoing intercarpal and/or wrist
fusion should have the pisotriquetral joint assessed.
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2006 COMPARISON OF EXTERNAL FIXATION AND VOLAR PLATE FIXATION FOR TREATMAENT OF UNSTABLE INTRA-ARTICULAR DISTAL RADIUS FRACTURES, Marco Rizzo, M.D., Mayo Clinic, Rochester, MN |
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Introduction
Controversy exists with
respect to the optimal treatment modality for unstable distal radius
fractures. Various reports using locked volar plating have provided
excellent results. We retrospectively compared the results of open
reduction and internal fixation (ORIF) through a volar
approach using a locking plate with standard external fixation and
percutaneous pinning for the treatment of unstable distal radius fractures.
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| 2006 ABSOLUTE EMERGENCIES IN HAND SURGERY, Sigurd Sandzen, Vero Beach, FL | |||||||||||||||||||||||||||||||||||||
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Absolute emergencies in hand surgery are those cases which must be treated immediately to maintain tissue viability, achieve the best functional result, or both. These situations include:
1. Open wounds Contraindicated are delayed wound care or conservative initial care.
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2006 Radiofrequency Probe Applications in Wrist Arthroscopy, Sotereanos D.G., Giannoulis F.S., Darlis N.A., Weiser R.W., Allegheny General Hospital, Department of Orthopaedics, Pittsburgh, PA |
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Purpose:
The use of electrosurgical (radiofrequency) devices in
arthroscopic surgery has gained increasing popularity in recent years as a
tool for resection, ablation, coagulation and soft tissue thermal
shrinkage. Recently, the availability of radiofrequency (RF) probes for
small joint arthroscopy has extended its use in the wrist joint. We present
the initial results of triangular fibrocartilage complex (TFCC) tear
debridement and scapholunate (SL) ligament thermal shrinkage using RF
probes.
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| 2006 Suprascapular intraneural ganglia and glenohumeral joint connections, Spinner RJ, Amrami KK, Kliot M, Johnston SP, Casaňas J., Mayo Clinic, Rochester, MN | |||||||||||||||||||||||||||||||||||||
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Object.
Unlike the more commonly noted paralabral cysts (extraneural ganglia) which
are well known to result in suprascapular nerve compression, only four cases
of suprascapular intraneural ganglia have been reported. Because of their
rarity, the pathogenesis of suprascapular intraneural ganglia has been
poorly understood and a pathoanatomical explanation has not been provided.
In view of the growing literature demonstrating strong associations between
paralabral cysts and labral (capsular) pathology, joint connections and
joint communications, the authors retrospectively reviewed the magnetic
resonance (MR) imaging studies and postoperative results in the two featured
patients to test a hypothesis that suprascapular intraneural ganglia would
have analogous findings.
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| 2006 T-PIN: A NEW DEVICE FOR DISTAL RADIUS FRACTURES, John S. Taras, M.D., The Philadelphia Hand Center, Philadelphia, PA | |||||||||||||||||||||||||||||||||||||
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Abstract: Distal
radius fractures are among the most common fractures treated by orthopaedic
surgeons. Numerous techniques have been devised to address these fractures
and the factors associated with these injuries. The T-Pin ® (Union
Surgical, LLC, Philadelphia, Pennsylvania) is a novel instrumentation
designed to utilize standard percutaneous techniques in the treatment of
extra-articular distal radius fractures. The T-Pin® allows for early active
range of motion, as well as, earlier return to functional activities. This
article discusses the instrumentation, the techniques of insertion and
extraction, and post-operative care.
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Abstracts 2005 |
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2005 Proximal Femoral Fracture During THA:Risk Factors, Treatment and Outcome, Michael E. Berend, M.D., Orthopaedic Indianapolis Center for Hip and Knee, Mooresville, Indiana |
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Proximal femoral fracture is a relatively common occurrence during THA. Treatment with protected weight bearing, cerclage wires, or long stem prostheses has been described. Less is known about risk factors for fracture and clinical outcome of treatment options. The purpose of this study was to identify risk factors associated with proximal femoral fracture during THA examining surgical approach, patient demographics including age, sex, and body mass index, type of femoral component fixation, treatment options, and outcome of the arthroplasty. 3084 hips were examined. The incidence of fracture was 3% for all THA’s. Uncemented stem insertion had a significantly higher fracture rate at 8.2% compared to cemented stems at 1.2% (p<0.0001). Risk factors for proximal femoral fractures include anterolateral approach, uncemented femoral component fixation, and female gender (p=0.0018). Treatment with cerclage wiring was the most common treatment and maintained femoral component stability. This study identifies an “at risk” population based on surgical approach, gender, and the use of uncemented components for proximal femoral fracture during THA. Treatment with cerclage wiring in combination with tapered titanium proximally circumferentially coated implants yielded excellent clinical and radiographic results.
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2005 Comparison of Patterns of Arthritis Between Rheumatoid Arthritis and Osteoarthritis In Patients Undergoing Total Knee Arthroplasty, Michael E. Berend, M.D., Orthopaedic Indianapolis Center for Hip and Knee, Mooresville, Indiana |
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Knees with endstage rheumatoid arthritis (RA), and osteoarthritis (OA) have unique radiographic features. The comparative intraoperative patterns of arthrosis, preoperative clinical variables, and outcome of TKA are less well understood. The purpose of this study was to compare these features in knees with RA and OA undergoing TKA. 7036 knees with OA were compared with 179 knees with RA. Intraoperative patterns of arthrosis demonstrate that knees with RA have more symmetric involvement of the medial, lateral, and patellofemoral articulations. ACL and meniscal degeneration was more advanced and involved both menisci in knees with RA (p<0.0001). Osteophytic changes were significantly more advanced in patients with OA in all three compartments and on both sides of the articulation (p<0.02). Preoperative range of motion was less and preoperative alignment was in significantly more valgus in knees with RA: 4.4° vs. OA: 0.1°(p<0.0001). TKA survival for both PCL retaining and PCL substituting implants was no different comparing knees with RA and OA out to 12 years. Mean age at arthroplasty was significantly younger in patients with RA: 61.8 yrs vs. OA: 70.1 yrs. We conclude that the intraoperative pattern of OA including surface arthrosis, meniscal and ACL degeneration, and asymmetry is significantly different than the more symmetric and less osteophytic appearance of RA. Preoperative alignment and range of motion are significantly affected by preoperative diagnosis. Interestingly, the long-term survival of both PCL retaining and PCL substituting implants is not different for knees with RA vs. OA.
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2005 Effect of Intraoperative Anterior Cruciate Ligament Integrity on Surgical Technique and Outcome of Total Knee Arthroplasty, Michael E. Berend, M.D., Orthopaedic Indianapolis Center for Hip and Knee, Mooresville, Indiana |
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The aim in this study was to determine the effect of intraoperative anterior cruciate ligament (ACL) integrity on total knee arthroplasty (TKA) surgical technique and functional and radiographic TKA outcome. 6524 primary total knee arthroplasties in 4393 patients were performed for osteoarthritis had the intraoperative appearance of the anterior cruciate ligament graded as normal, present but damaged, or absent. Patients were followed for a minimum of 2 years. Preoperative deformity, intraoperative variables of ligament balancing requirements and implant features, clinical outcomes, and implant survival were compared based on ACL status. The ACL was graded as normal - 43%, present but damaged – 38%, and absent in 19% of knees. Male gender was associated with more advanced ACL degeneration (p<0.0001). An absent ACL was associated with the need for more significant medial, lateral, and posterior soft tissue releases, decreased preoperative range of motion, and insertion of a thicker tibial polyethylene implant (p<0.05). There was no difference with respect to implant survival at ten years, knee scores, function scores, or late instability between ACL groups. We conclude that an absent ACL is associated with greater preoperative deformity, increased intraoperative balancing requirements, and thicker polyethylene inserts but does not affect clinical outcome of the TKA or implant survival. |
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2005 A Ten to Thirty-One Year Survival ANALYSIS OF Total Elbow Arthroplasty With the Coonrad/Coonrad-Morrey Prosthesis, J. Mack Aldridge III, M.D.†, Nina R. Lightdale, M.D, William J. Mallon, M.D, Ralph W. Coonrad, M.D., Durham, North Carolina |
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There have been few long term survivability reports of total elbow arthroplasty beyond 10 to 15 years. In a series of 65 consecutive elbow arthroplasties carried out by a single surgeon between 1974 and 2002, using the Coonrad/Morrey prosthesis, 41 elbows in 40 patients with an average age of 56 years (range 19 yrs – 83 yrs) identified with a minimum survival of 10 years were assessed by functional survival analysis, using permanent implant removal and revision as the failure endpoints. The varied pathology consisted of intermediate stage rheumatoid to extensive traumatic conditions, often with multiple failed previous procedures. Thirty-one of the 40 patients were 60 years of age or older at the time of arthroplasty. Surgical selection excluded prior elbow infection or patient refusal to adopt a sedentary elbow activity level for life of the implant. Objective data was collected from charts, radiographs, clinical photographs, supplemented by referring orthopedists’ records and radiographs if health or distance prevented final clinic return. Subjective outcome was defined by patient satisfaction. There were 14 complications, no acute infections or peri-operative fractures. Thirteen elbows had from one to four revisions and all were still functional until the time of death or final evaluation (9 patients were deceased). Bushing wear requiring revision occurred in five elbows and was associated with overuse and preoperative deformity in all. Of the 41 elbows at final assessment, 33 were rated excellent (80%), 7 good (17%) and 1 fair (2%) using the MEPS system. All patients would have repeated their operation. For survival analysis with removal and revision as the sole end points for failure, there were no permanent removals, 13 revisions were classified as failures although at the time of final assessment, 40 of 41 elbows were satisfactory objective outcomes (97%) at a mean of 18 years after surgery (10 to 31 years). The authors considered sedentary activity compliance an important but unproven factor in outcome. Total elbow arthroplasty using the Coonrad/Coonrad-Morrey prosthesis is a durable and effective option in alleviating pain and restoring motion in the salvage elbow.
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2005 Tibiotalocalcaneal Arthrodesis, Mark Easley, M.D., Duke University Medical Center, Durham, North Carolina |
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Introduction: Prospective evaluation of tibiotalocalcaneal arthrodesis with standardized algorithm: (1) intramedullary nail when residual talar body present and (2) lateral blade plate with talar collapse/AVN.Methods: Thirty-six tibiotalocalcaneal arthrodeses were performed by a single surgeon in 35 patients (Average age: 46 years, (range, 22-71), 17 males, 18 females) for limb salvage. A standardized algorithm was followed: (A) retrograde IM nail with residual talar body (TTC arthrodesis) (24) and (B) lateral blade plate/crossed lag screws with talar body collapse/AVN (TC arthrodesis) (12). Indications included: Post-traumatic DJD of ankle/subtalar joint (20), Charcot neuroarthropathy (10), talar AVN (6). Associated problems included: Failed prior surgery to hindfoot or ankle (22) and history of osteomyelitis/sepsis of hindfoot/ ankle (6). Evaluation was by independent observer. Results: Average followup of 22 months (range, 12-58) was available for 34 patients. The average AOFAS hindfoot/ankle score improved from 34 to 71 points (maximum AOFAS score possible postop: 86 points.) Leg length discrepancy averaged 1.4 cm in the TTC group and 2.9 cm in the TC group. Standard weightbearing foot and ankle radiographs suggested an 82% union rate at most recent followup, based on bridging trabeculation at the arthrodesis sites. Three patients lacked bridging trabeculation but remained asymptomatic. Complications included: Symptomatic nonunion (no bridging trabeculation and pain/deformity) (3), deep infection (3), fracture above the hindfoot/ankle (2). Further surgeries included: Hardware removal (5), Irrigation and debridement (4), Revision arthrodesis (4), ORIF of tibia fracture (1), transtibial amputation (3). Discussion: This simple treatment algorithm allows for limb salvage in a majority of cases. The nonunion and complication rates are concerning, but anticipated given the complex hindfoot pathology.
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2005 The Modified Ludloff Proximal First Metatarsal Osteotomy for Surgical Correction of Hallux Valgus Deformity, Mark Easley, M.D., Duke University Medical Center, Durham, North Carolina |
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Introduction: Prospective Analysis of the modified Ludloff osteotomy for surgical correction of hallux valgus deformity. Methods: One-hundred nine feet in 99 patients (average age 53 years (range, 16-77), 89 females, 10 males) underwent modified Ludloff osteotomies with DSTP at two institutions. Evaluation was prospective using the AOFAS forefoot-metatarsophalangeal-interphalangeal scoring system preoperatively and at latest followup. Weightbearing foot radiographs were analyzed according to AOFAS guidelines. Results: Eighty-eight patients (97 feet) (89%) were available at an average followup of 36 months (range, 24-56 months). The average AOFAS score improved from 53 points to 87 points. Preoperatively, all patients complained of pain; at most recent followup 79 patients (90%) were asymptomatic. Radiographic evaluation suggested all osteotomies healed, but 17 cases (16%) demonstrated callus formation at the osteotomy site. Average age of patients with callus formation was 67 years. No cases of dorsiflexion malunion were observed. Average IMAs preoperatively and at latest followup were 17.8 degrees and 7.8 degrees, respectively; average HVAs were 41 degrees and 15 degrees, respectively. Tibial sesamoid position improved an average of 1.5 grades. Hallux varus was observed in 12 feet (11%). Three feet developed hallux rigidus (3%). Recurrence of hallux valgus was observed in 3 feet (3%). One deep infection and one cellulitis were managed effectively with satisfactory outcome. Discussion: To our knowledge, this prospective, multicenter investigation comprises the largest cohort of patients undergoing a modified Ludloff osteotomy. At intermediate followup, currently available outcome measures suggest that the results of this proximal first metatarsal osteotomy are at least equal to those reported for other proximal first metatarsal osteotomies utilized in correcting hallux valgus.
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2005 Percutaneous achilles tendon Repair, Lamar L. Fleming, MD and Sanda L. Tomak, M.D., Emory University School of Medicine, Atlanta, Georgia |
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Since 1980 the senior author has used the percutaneous technique for repairs of Achilles tendon in those individuals who normally would have a closed technique of treatment. We have treated them in this manner with an accelerated rehabilitation program. The technique is to use 1% xylocaine with epinephrine injected in eight places along the sides of the Achilles tendon. We then make stab wounds on each side of the tendon, four on each side. Using a Bunnell type suture technique with a No. 0# monofilament polydioaxone suture and two Keith needles we suture the tendon with two weaves above the rupture and two below the rupture. This suture is tied on the lateral aspect of the ankle. It must close down the rupture gap. Any puckering of the skin is released subcutaneous with a hemostat. The wounds are closed with staples and the patient is put in an equinus padded splint. At ten days the patient is brought back to the clinic where he is put into adjustable plantar flexion brace at 15° of plantar flexion for two weeks then raised to neutral degree at one-month post- op. He is able to walk and to ambulate weight bearing while in his brace. Therapy is started at four weeks with concentric strengthening and range of motion. At two month eccentric exercises are begun. None of them are allowed to go back to sports for six months. We were able to get ten of our cases who were at two years or more post-op and found their AOFAS ankle hind foot score was 94 out of a possible 100,all were satisfied with the treatment, no complications, and no re-ruptures. One patient stated that he was still weak when playing basketball. The Cybex 11 dynamometry studies show that they all had mean decrease in total work capacity compared to the uninvolved leg by 21% less strength. The circumferences of their involved calves were smaller by a means of 1.6 cm. They were all satisfied with the results their treatment. This technique can be done in the emergency room or in a minor surgical room where the cost is remarkably less than compared to an operation room setting where the operation room cost itself is 4 to 5 times as much. We have found this to be an acceptable, economical, and reproducible technique for semi-closed treatment of Achilles tendon ruptures. REFERENCES 1. Tomak, MD, S.L. and Fleming, MD, L.L.: Achilles Tendon Rupture: An alternative Treatment. AJO: 2004;9-12.
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2005 LAMINOPLASTY VERSUS ANTERIOR CORPECTOMY IN THE TREATMENT OF CERVICAL SPONDYLYTIC MYELOPATHY, Christopher G. Furey, M.D., Assistant Professor, Department of Orthopedic Surgery, Case Western Reserve University, Cleveland, Ohio |
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OBJECTIVE: To identify perioperative experience, neurologic improvement, clinical outcome, and patient satisfaction in patients undergoing either anterior cervical corpectomy and fusion or posterior cervical laminoplasty for the treatment of cervical spondylytic myelopathy. MATERIALS & METHODS: 2 cohorts, each with 20 patients, with comparable demographics and similar degree of neurologic dysfunction underwent surgical treatment for cervical spondylytic myelopathy. Choice of surgery was non-random and was primarily based on the degree of cervical lordosis and the magnitude of axial neck pain. Patients with relative maintenance of cervical lordosis and minimal complaints of neck pain underwent multi-level laminoplasty. Patients with advanced degenerative spondylosis and loss of cervical lordosis, with any significant component of axial neck pain, underwent multi-level anterior cervical corpectomy and fusion. Patients were evaluated with Nurick disability scale of cervical myelopathy, a SF-36 score, and a specialty questionnaire relating personal satisfaction, resumption of prior lifestyle, and willingness to repeat the operation. Radiographs were obtained at 6 weeks, 3,6,and 12 months post-operatively. Minimum follow-up was 2 years with an average of 4.6 years. RESULTS: Operative time, surgical blood loss, and hospital stay were significantly lower in the laminoplasty cohort. Post-operative dyphagia, need for narcotic pain medication, and persistence of axial neck pain were also significantly less common in the laminoplasty cohort. SF-36 scores and change in Nurick grade post-operatively, as well as satisfaction with the procedure and willingness to repeat the specific surgery were not significantly different. 3 patients in the corpectomy cohort required additional surgery, two for the removal of prominent anterior plate and one to address a pseudarthrosis with a posterior fusion. No patient in the laminoplasty cohort required further surgery. CONCLUSION: Anterior cervical corpectomy and laminoplasty are both effective techniques to treat the neurologic sequelae of cervical spondylytic myelopathy. While indications for laminoplasty are limited by the need for preserved cervical lordosis and minimal axial neck pain, it is a surgery of less magnitude and more tolerable in the immediate post-operative period.
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2005 Use of a Humeral Nail with Spiral Blade for Proximal Humerus Fractures, Wildstein MS, Valentine B, An YH, Horan M, Kmiec S, and Hartsock, LA, Medical University of South Carolina, Charleston, South Carolina |
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Purpose: The purpose of this study was to test the strength of the spiral blade intramedullary nail system (SBIN, Synthes, Paoli, PA) when augmented with the bone cement, Norian (Norian Co, Cupertino, CA) and report on preliminary clinical results.Biomechanical Materials and Methods: Twelve pairs of sawbones and twelve pairs of fresh frozen cadaveric humeral bones (range 55 – 82 years, average 69 years) were obtained. X-rays showed significant osteopenic changes in the cadaveric bones.An osteotomy was made in each bone to reproduce a Neer two part humeral fracture. The fracture was reduced and the SBIN construct was inserted into the proximal humerus. In augmented specimens, the spiral blade was then removed and 10 ml of Norian was injected into the void in the humeral head created by the spiral blade. The blade was then reinserted, the bones wrapped in moist towels and placed in an incubator at 37°C overnight. Each bone/SBIN construct underwent either torsional or cantilever testing using a hydraulic mechanical testing system (MiniBionix 858; MTS, Eden Prairie, MN). The ultimate load to failure for each humerus was determined, with the machine run under displacement control at a rate of 25 mm/min. An identical procedure was followed for all humeri. Data were evaluated using paired students t-test.Biomechanical Results: The ultimate load to failure of the Norian augmented and non-Norian augmented humeri were compared. In the 6 pairs of sawbones, the difference was statistically significant (Cemented: 1035±338 N, non-cemented: 454±249 N, p = 0.00056). In the cadaveric humeri, there was an obvious trend of increased ultimate load sustained by the Norian augmented specimens (Cemented: 527±103 N, non-cemented: 342±126 N, p = 0.07).Clinical Materials and Methods: Twenty-five patients were treated from 2002-2005. Patients were treated with a humeral nail and spiral blade. Norian was used to fill metaphyseal voids. Early full range of motion was initiated immediately after surgery. Results were collected retrospectively and outcomes scores were obtained using the DSAH, oxford and SST.Clinical Results: Outcome data are available for 11 patients. There were seven 2 part fractures and four 3 part fractures. Seven patients were female and four were male. The average age was 55, average ISS was 12 and average follow up was 17 months. There were no deep infections and no nonunions. The average DASH Score was 36.7(1-82), oxford score was 30 (14-47), and SST was 4 (1-12).Discussion: The SBIN system is an effective method for fixation of Neer two part fractures of the proximal humerus. Norian augmentation shows a clear trend in increasing load to failure.The addition of the spiral blade to the intramedullary construct yields an increase in surface area contact in the proximal humerus When combined with the void filling bone cement, Norian, this study demonstrates increased strength in the fixation of proximal humerus fractures.Preliminary clinical results are encouraging and warrant continued use of this technique for two part and selected three part fractures.* This research was supported by a grant from the AO foundation.
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2005 The Role of a Geared Multiplanar External Fixator in the Correction of Soft Tissue and Boney Deformity, Jian Shen, MD, PhD, Beth Paterson Smith, PhD, L. Andrew Koman, MD, Wake Forest School of Medicine, Winston-Salem, North Carolina |
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Acute correction of joint deformity with or without associated soft tissue contractures is a difficult problem that requires radical release of the joint, osseous resection, or staged correction using pins and a cast or thin wire multiplanar ring fixation. Pins and cast and multiplanar fixation techniques often are tedious and complicated. In order to simplify the correction process, a multiplanar-geared minirail device was designed to allow incremental longitudinal distraction, flexion-extension, and radial-ulnar correction. The hypothesis of the study was that the availability of a device that permits staged correction of complex joint deformities and non-surgical lengthening of musculotendinous contractures will improve patient outcomes and will aid in the management of complex upper extremity deformities. The specific aims were: 1) to present techniques for the use of this device, 2) to review clinical indications, contraindications, and complications associated with its use, and 3) to present preliminary results of our clinical experience. Methods: The multiplanar geared minirail (M3J; patent pending; Orthofix, Inc., McKinney, Texas) was envisioned by LAK and developed by Orthofix engineers. The device consists of linked monorails connected by paired worm gears. It allows the positioning of the radial-ulnar or palmar-dorsal gears over the center rotation of the joint in order to permit distraction and/or compression of either railed segment. The geared multiplanar fixator was used in 7 patients (8 extremities). All the patients were males with an average age of 10 years (range: 3-18 years). Clinical indications for use of the fixator included longitudinal deficiency of the radius (radial club hand n=5 extremities) and wrist flexion contracture and spasticity (n=3 extremities). Results: After application of the fixator followed by incremental correction of the joint deformity, patients experienced improved wrist range of motion, improved range of dorsiflexion and improvements in grasp, release, and activities of daily living. There were no pin tract infections, device failures, and all patients achieved their desired goals. Conclusions: Multiplanar-geared fixation is a useful adjunct for the management of complex upper extremity deformities in pediatric patients. The use of the fixator is simple, allows correction in the palmar-dorsal and radial-ulnar planes, and permits distraction, if it is required.
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2005 KIKUYU KENYA, James A. Pressly, Charlotte Orthopaedic Specialists, Matthews, North Carolina |
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Kenya, a country of 30 million people in Africa, was formerly a part of British East Africa. It is bordered by Ethiopia and Sudan on the north; Uganda and Lake Victoria on the west; Tanzania on the south; and Somalia and the Indian Ocean on the east. Our church and OrthoCarolina, the orthopaedic group I am affiliated with in Charlotte, NC, has supported Kikuyu Orthopaedic Rehabilitation Hospital for the past 9 years. The hospital was constructed in 1997 as a combined project of USAID and the Presbyterian Church USA with 15 acres of land donated for the project by the Presbyterian Church of East Africa. It borders the general hospital complex originally established by Scottish Presbyterians as a mission station in 1898. Kenya is about the size of Texas. It was granted independence in 1962 after the Mau Mau “emergency”. Most of the population is Christian with a growing Muslim minority mostly along the coast around Mombasa. Access to orthopaedic care is not good. Education is valued and the literacy rate is about 75 per cent. In Kikuyu, there is a general hospital, an eye unit, a dental facility and the orthopaedic rehab hospital. The orthopaedic hospital is well-known and may be one of the best places to receive orthopaedic care in sub-saharan Africa. It is a 36 bed unit with male, female and children’s wards. It has an outpatient clinic, an x-ray department, lab, physical therapy and a pharmacy. There are two well-equipped operating rooms. The hospital had over 10,000 outpatient visits in 2004 and over 900 operative cases were done. The physical therapy and orthotics department were very active. The hospital is self sustaining. A clinic visit is $3 or 225 shillings; a total joint is $700 or 50,000 shillings. On the orthopedic hospital grounds, small duplexes have been built to house doctors, administrators and nurses. Since housing is limited and so expensive in Kenya, this allows the hospital to compete with hospitals in Nairobi that can pay high salaries but do not offer housing. There is also a hostel for visiting doctors and mission teams. The hospital is staffed permanently by Dr. Johnson Murila, who attended the Alliance School and the University of Nairobi. He received his orthopaedic training in Great Britain. He is an excellent clinician and technician and a dynamic leader. Patients come from all over Kenya and as far away as Somalia. Dr. Murila treats many different orthopaedic problems including club feet and other congenital deformities, burn scar contractures, old mal-united fractures, unreduced dislocations, and much acute trauma. He is adept at tibial and femoral nailings, total hip and knee arthroplasty and arthroscopy. Generally, the groups going to Kikuyu include an orthopaedist, a scrub nurse and an anesthetist. Most trips also include a construction group to work on various projects around the hospital or at local churches, schools and orphanage. Each person on the team takes a 70 pound container of medical equipment donated by local hospitals and representatives of Dupuy and Zimmer. Visits are usually for 2-3 weeks in length and serve to supplement other volunteers from the USA and Europe who assist Dr. Murila. Each volunteer doctor from my practice has found the experience unforgettable, from hospital work and contact with the Kenyan people, to the amazing beauty of the scenery and animals.
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2005 HIGH RESOLUTION MRI CAN HELP DETERMINE TUMOR RESECTABILITY IN
CASES OF BENIGH SCIATIC NOTCH LESIONS,
Robert J. Spinner, M.D., Kimberly K. Amrami, M.D., Eric J. Dozois, M.D.,
Dusica Babovic-Vuksanovic, M.D., Franklin H. Sim, M.D., Mayo Clinic,
Rochester, Minnesota |
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We believe that the integration of advanced imaging is an important component of a multidisciplinary surgical team approach in the comprehensive evaluation and treatment of patients with sciatic notch dumbbell tumors. This imaging technique allows distinction between tumor and nerve and can help predict a tumor's resectability. It appears that in patients with extensive unilateral sciatic notch dumbbell tumors, safe and complete resection may be achievable and may be predicted. Furthermore, even when these tumors are of neural origin, they seem to arise from small branches rather than the main sciatic nerve along which they track more frequently than previously thought.
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2005 Reconstruction Options for Massive Bone Loss of the Elbow, James R. Urbaniak, M.D., Division of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina |
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The author discussed the management of
massive bone loss of the elbow (the entire elbow joint is completely lost).
Some type of external support such as a brace is usually inadequate because
to get good function of the elbow the brace compresses the area of nerves in
the upper arm and forearm because of lack of any buttressing of the brace
with the elbow joint being absent.
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2005 Advances in regional anesthesia for hip surgery, Thomas Parker Vail, MD, Duke Medical Center, Durham, North Carolina |
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Universal interest in less invasive surgical techniques, quicker rehabilitation, and improved pain management has led to innovation and improvement in regional anesthetic options for major lower extremity reconstruction. Regional anesthetic techniques hold the potential to meet the demand for improved pain management, decreased postoperative nausea and vomiting, and early return to function. While advances in the field of anesthesia have made the wider use of regional technique possible, surgeons retain a strong influence on patient choice in anesthetic options. Historically, regional anesthesia has been associated with unpredictable outcome and longer operative turnover times. Surgeons without experience in the use of regional anesthesia are hesitant to adopt the technique because of perceived inefficiency and prolonged room turnover, while also indicating great satisfaction with the pain relief provided by continuous peripheral nerve blockade. A focus on safety and effectiveness combined with newly developed catheters for continuous medication delivery, specialized infusion pumps, and a growth in the subspecialty of regional anesthesia have made this option more attractive to patients and surgeons. Regional anesthesia for major lower extremity reconstruction includes the use of single shot and continuous epidural injection, single shot and continuous spinal injection, continuous lumbar plexus blockade, and continuous peripheral blockade of the femoral and sciatic nerves. Success with these techniques has led to the application of regional anesthetic technique in conjunction with major lower extremity reconstructive procedures such as multi-ligament knee reconstruction, tibial osteotomy, unicompartmental replacement, ankle fusion, and ankle replacement, as well as hip and knee replacement. Recent evidence indicates a high degree of reliability, safety, effectiveness, and patient satisfaction with regional anesthesia. Shorter stays in the recovery room area contributes to the cost effectiveness of these techniques. Widespread adoption of regional anesthesia will require an increase in the number of anesthesiologists trained in regional techniques, continued demonstration of safety, the possibility of early mobilization with weight-bearing, the early return of proprioceptive function, and system efficiency.
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2005 CHARITÉ ARTIFICIAL DISK REPLACEMENT, Kenneth E. Wood, MD, Samuel J. Chewning, MD, H. Lee Gooch, MD, Jonathan Garrett, PA-C, Piedmont Health Care, Statesville, North Carolina |
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OBJECTIVE: To present a brief review of the pertinent literature and data on a small series. SUMMARY OF BACKGROUND DATA: Pathologic changes of degenerative disk disease include diminished H2O binding, annular fissures, loss of mechanical competence and subsequent narrowing and osteophyte formation. The rationale for artificial disk replacement is based on maintaining motion at the operative segment and restoring disk height while maintaining segmental lordosis. The first Charité disk replacement was developed in East Berlin at the Charité Clinic (1982) by Dr. Kurt Schellnach and Dr. Karin Buttner-Janz. The components of this device include two endplates made of high quality cobalt, chromium, alloy and a sliding conforming convex ultrahigh molecular weight polyethylene core insert. Indications approved by the FDA:
The Charité disk replacement is implanted through an anterior retroperitoneal approach. Implantation requires complete diskectomy and proper alignment under bipolar imaging. The US and European literature include several hundred patients and still promising results. RESULTS: To date we have performed fourteen (14) artificial disk replacements in twelve (12) patients since December 2004. The short-term data show outstanding results with minimal complications. DISCUSSION: Early results appear promising for the Charité disk replacement device. Concerns remain significant and include such things as possible loosening and infection.
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2005 BANDA ACEH, Lewis G. Zirkle, Jr., M.D., SIGN, Richland, Washington, www.sign-post.org |
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SIGN was founded in 1999 to design
and manufacture IM nil interlocking screw systems that could be used in
developing countries where no C-arm is available. Nine-hundred (900) SIGN
surgeons in 37 countries have performed 13,000 surgeries on fractured
femurs, tibias and humeri using the donated SIGN systems. Six-thousand
two-hundred (6,200) SIGN surgeries have been recorded on our surgical
database within the last 18 months. These include pre and post operative
x-rays.
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2005 RING REMOVAL FROM A SWOLLEN FINGER – A REFINED TECHNIQUE, Wayne B. Venters, M.D., Spokane, Washington |
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Removing a
ring or other circular object (wide steel band) from a swollen finger can be
most difficult if not almost impossible. |
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Abstracts 2004 |
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2004 TOM BROKAW, ORTHOPAEDICS, AND THE PIEDMONT ORTHOPEDIC SOCIETY, James P. Aplington, M.D., Greensboro, North Carolina |
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When I received a letter from Dr. Goldner last July, I suspected this was
either a statement that I owed the Piedmont some money or it was a refund
from last years meeting. I was totally surprised to learn that the
Executive Committee had asked me to be one of the two guest speakers at the
years Piedmont meeting. When I look at the distinguished list of Piedmont
members and those that have been up here at the podium in the past years, I
am indeed deeply honored to be speaking to you today.
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| 2004 Isolated Liner Exchange via the Anterolateral Approach is Not Associated with Increased Risk of Dislocation, Thomas M. Smith, DO, Keith R. Berend, MD, Adolph V. Lombardi Jr., MD, FACS, Thomas H. Mallory, MD, FACS, Joanne Adams, BFA, Jackie Russell, RN, Joint Implant Surgeons, Inc., 720 East Broad Street, Columbus, Ohio 43215 | |||||||||||||||||||||||||||||||||||||
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Isolated liner exchange for osteolysis/wear have has dislocation rates.
Twenty-six patients (27 hips) underwent isolated liner exchange via the
anterolateral approach and have minimum 2-year follow-up (mean: 40.7
months). Harris hip scores increased from 70.4 to 81.7 (p=0.007). Pain
(p=0.02) and functional (p=0.03) scores improved. No components were
re-revised for aseptic loosening. One (3.7%) dislocation occurred. Isolated
liner exchange for osteolysis and wear performed via the anterolateral
approach has a lower risk of dislocation and provides significant
improvements in pain, function and total Harris
hip score. When performed via the anterolateral approach this
provides good outcomes with low dislocations.
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2004 Ileus Following Total Hip or Knee Arthroplasty is Associated with Increased Risk of Deep Venous Thrombosis and Pulmonary Embolism, Keith R. Berend, MD, Adolph V. Lombardi, Jr., MD, FACS, Thomas H. Mallory, MD, FACS, Kathleen L. Dodds, BS, RN, Joanne B. Adams, BFA, Joint Implant Surgeons, Inc., 720 East Broad Street, Columbus, Ohio |
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Venous thromboembolic disease (VTD) occurs following THA and TKA. Ileus occurs up to 4.0%. 3364 Primary and revision THA and TKA over 2-years were reviewed to examine a relationship between ileus and VTD. Prophylaxis was aspirin and intermittent pulse boots for most. High risk patients received chemical prophylaxis and boots. 62 Patients had ileus (2.1%) and symptomatic DVT in 51 (1.7%). With ileus, the incidence of DVT was 8.1%: odds ratio 5.5 (p=0.0036). Symptomatic PE occurred in 7 (0.24%); with ileus the incidence was 3.2%: odds ratio 19.6 (p=0.0082). A significant increase in rates of VTD with ileus was seen.
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| 2004 A Large Diameter Metal-on-Metal Prosthesis May Decrease Early Dislocation in Primary, Minimally Invasive and Revision Total Hip Arthroplasty, Thomas M. Smith, DO, Keith R. Berend, MD*, Adolph V. Lombardi Jr., MD, FACS, Roger H. Emerson Jr., MD, Thomas H. Mallory, MD, FACS, Joint Implant Surgeons, Inc., 720 East Broad Street, Columbus, Ohio | |||||||||||||||||||||||||||||||||||||
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Post-operative dislocation causes morbidity and failure in THA. The
dislocation rate for a large diameter metal-on-metal prosthesis was
examined. We reviewed 329 consecutive patients (377 hips) undergoing THA
with large diameter metal-on-metal THA. Two approaches were utilized:
anterolateral (342) and mini-incision posterior (35). Age at surgery
averaged 55.9 years and follow-up averaged 3.9 months. Procedures included
346 primary, 15 conversion, and 16 revision/reimplantation. Sixty-two
patients had diagnoses at high risk for dislocation. During the follow-up,
there were no dislocations. Large diameter metal-on-metal articulations are
a viable choice for primary and revision THA and decrease dislocation risk.
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| 2004 Medical Liability Reform, Richard Bruch, M.D., Durham, North Carolina | |||||||||||||||||||||||||||||||||||||
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Factors that helped to
cause the increase in Medical Liability insurance premiums were reviewed.
The sharp increase in premiums did not affect all specialties equally.
Those physicians performing procedures such as those delivering babies had a
larger increase than primary care physicians.
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| 2004 The “Drop Sign”, a Radiographic Warning Sign of Elbow Instability, Ralph W. Coonrad, M.D.*, Thomas F. Roush, M.D., Nancy M. Major, M.D., Carl J. Basamania, M.D., Durham, North Carolina | |||||||||||||||||||||||||||||||||||||
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Persistent instability or redislocation is uncommon but of significant concerning treating elbow dislocations. Following reduction, the finding of an objective, static, radiographic sign that might correlate with the presence of instability was the purpose of this study. Pre and post-reduction radiographs of ten consecutive simple and complete adult elbow dislocations (from an institutional series of 183 complex and simple dislocations) were compared with radiographs of twenty consecutive adult elbows without trauma history. A statistically significant measured increase in static ulnohumeral distance was noted on the routine unstressed post-reduction lateral radiographs of patients sustaining dislocation. We have termed this increased distance the “drop sign”. It differs from the radiographic ulnohumeral separation noted during O’Driscoll’s test for posterolateral rotary instability which is present only with axial compression. The “drop sign” becomes concerning only if persistent or recurrent after the first reduction radiograph and may be a warning sign of the presence of instability.
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| 2004 The Ability of MRI to Predict Failure of Nonoperative Treatment of Pyogenic Vertebral Osteomyelitis, Scott McAtee, M.D, F. Spain Hodges, M.D, Steven M. Theiss, M.D., John S. Kirkpatrick, M.D.*, Gerald McGwin, Ph.D., University of Alabama at Birmingham Hospital, Birmingham, Alabama | |||||||||||||||||||||||||||||||||||||
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Magnetic resonance imaging (MRI) of twenty-two patients
with pygenic vertebral osteomyelitis were reviewed to determine whether MRI
predicted failure of nonoperative treatment. Nine patients failed
non-operative treatment and required surgical intervention. Patients
treated successfully by non-operative means had an average of 57% +/- 19%
involvement of the affected motion segment, whereas those failing
conservative treatment had an average of 89% +/- 18% involvement of the
affected motion segment.
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2004 Correction of Joint and Soft Tissue Contractures in Children: The Role of a Multiplanar-Geared Correction Device, L. Andrew Koman, MD*, Beth Paterson Smith, PhD, Greg Mohler, BS, Richard Bryant BS, Wake Forest University School of Medicine, Winston-Salem, North Carolina |
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Acute correction
of joint deformity with or without associated soft tissue contractures is a
difficult problem requiring radical release of the joint, osseous resection,
or staged correction with pins and cast or thin wire multiplanar ring
fixation. In order to simplify this process, a multiplanar-geared minirail
device was designed to allow incremental longitudinal distraction,
flexion-extension, and radial-ulnar correction. The geared multiplanar
fixator was used in 7 patients. Clinical indications for the use of the
fixator were radial club hand (n=5 extremities) and wrist flexion
contracture and spasticity (n=3 extremities). All patients experienced
improved range of motion, grasp, release, and activities of daily living.
Multiplanar-geared fixation is useful for managing complex upper extremity
deformities in pediatric patients. The fixator is simple to apply and
permits correction in the palmar-dorsal and radial-ulnar planes, and if
necessary, distraction can be performed.
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| 2004 Radial Collateral Ligament Injuries of the Index Metacarpophalangeal Joint: An Underreported Injury of Significant Clinical Importance, Gary Lourie, M.D., Atlanta, Georgia | |||||||||||||||||||||||||||||||||||||
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14 patients with RCL
injuries to the index MCP joint were reviewed. Age, mechanism of injury,
delay to treatment, and grade of injury were correlated with pain, change in
function, stability, motion, strength, degenerative changes, and
satisfaction.
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| 2004 Peroneus Brevis Split Tears, Angus McBryde, M.D., University of South Carolina School of Medicine, Columbia, South Carolina | |||||||||||||||||||||||||||||||||||||
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Horizontal split
tears of the brevis are becoming increasingly common with more intense
training, more eccentric loads (ie: plyometrics) and heavier,
more agility-skilled athletes. Early recognition and aggressive treatment
are important. Thirteen males and five females (one with a bilateral
peroneus brevis tear) were studied. Sixteen were operated. Ten were
athletes. Diagnosis was aided by MRI repositioning with the ankles held in
gravity equinus and eversion. All were active. The eight isolated repaired
tears returned to their sport at an average of 4.5 months. The other nine
required additional surgery involving 4 lateral reconstructions for
instability, 4 peroneus longus tears, 2 subluxing peroneals, 2 osteotomies,
1 OCD lesion and 1 “over stuffed” peroneal groove. Peroneus brevis
longitudinal tears have additional pathology 50% of the time, usually
requiring surgery. The tears with or without the associated injuries when
no fixed deformity has developed can be successfully reconstructed.
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| 2004 How to Prevent and Survive a Medical Malpractice Suit, Richard J. Nasca M.D., Wilmington, North Carolina | |||||||||||||||||||||||||||||||||||||
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The presentation describes the contents of a multi authored book dealing
with medical malpractice issues. The purpose of the book is to educate
physicians about ways to prevent and avoid claims as well as to prepare them
for litigation if that becomes necessary. The book consists of 30 chapters
authored by attorneys, doctors of medicine with and without law degrees and
other individuals knowledgeable about medical malpractice matters. After
reading this book, a physician should be able to navigate the legal process
with more understanding, confidence and less trepidation.
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| 2004 Anterior Cervical Fusion with Porous Tantalum Trabecular Metal Implants, Robert M. Peroutka, M.D., Johns Hopkins University School of Medicine, Baltimore, Maryland | |||||||||||||||||||||||||||||||||||||
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Iliac crest bone graft (ICBG), allograft, and synthetic implants are options
for anterior cervical fusion (ACF). Reported complication and morbidity
rates for ICBG done site are as high as 21%. Disadvantages of allograft
include lower fusion rates, the possibility of disease transmission,
expense, availability, inconsistent quality and graft collapse. Trabecular
metal (TM) is a porous tantalum implant that can be used as an anterior
cervical fusion implant. TM (Zimmer) is manufactured in a structure that is
70-80% porous. Initial results of the FDA IDE cervical study from May 2001
through April 2004 include 50 patients from my institution with follow up
from 6-24 months (average 12 months). There is no significant difference in
the preoperative and postoperative neck disability index between the TM
study group and the allograft control group. Fusion rate for allograft is
81%, fusion rate for TM is 95%, with no significant difference.
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| 2004 Locked Periarticular Volar Plating for Distal Radius Fractures, Marco Rizzo, MD, Duke Medical Center, Durham, North Carolina | |||||||||||||||||||||||||||||||||||||
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Introduction: Distal radius fractures are very
common and often require surgical intervention. This study is a
retrospective review of results using a locked volar plating technique.
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| 2004 Locked Periarticular Volar Plating for Distal Radius Fractures, Marco Rizzo, MD, Duke Medical Center, Durham, North Carolina | |||||||||||||||||||||||||||||||||||||
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Introduction: Distal radius fractures are very common and often require surgical intervention. This study is a retrospective review of results using a locked volar plating technique. Materials: Sixty-eight patients were treated with Synthes’ volar locking plate for distal radius fractures over an 18-month period. Results: All of the fractures healed with the volar locking plate technique. There were no cases of hardware failure. Post-operative range of motion averaged approximately 80% of unaffected. Discussion: Locked volar plating for the management of some distal radius fractures has been effective with encouraging early result
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| 2004 Arthroscopic Ganglionectomy in the Management of Dorsal Wrist Ganglions, Marco Rizzo, MD* Duke Medical Center, Durham, North Carolina, Richard Berger, MD, Scott Steinmann, MD, Allen Bishop, MD, Mayo Clinic, Rochester, Minnesota | |||||||||||||||||||||||||||||||||||||
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Introduction:
Dorsal carpal ganglions are common causes of pain and limited function. The
purpose of this paper is to review the results of arthroscopic resection of
dorsal wrist ganglions.
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| 2004 Spinal Deformity Following Selective Dorsal Rhizotomy, David A. Spiegel, M.D., Shriner’s Hospitals for Children/Twin Cities, Minneapolis, Minnesota | |||||||||||||||||||||||||||||||||||||
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A subset of patients with presumed idiopathic scoliosis will have an
underlying neural axis abnormality, and the indications for further imaging
(MRI) are based upon clinical and radiographic features, the latter of which
remain somewhat nebulous. Suggested clinical indications include
abnormalities on the history (pain, radiculopathy, bowel/bladder
dysfunction, persistent headache) or physical examination (cutaneous
abnormality, motor/sensory deficit, bowel/bladder dysfunction, foot
deformity). In addition, both age (infantile or juvenile) and gender (male)
may be important. Suggested radiographic indications include rapid
progression, dysplastic changes, a normal to hyperkyphotic thoracic spine,
and atypical curve patterns or features.
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| 2004 Targeted Fascicular Biopsy of Major Lower Extremity Peripheral Nerves, Robert J. Spinner, M.D.*, Kimberly K. Amrami, M.D., P. James B. Dyck, M.D., Mayo Clinic, Rochester, Minnesota | |||||||||||||||||||||||||||||||||||||
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Introduction.
The diagnosis of many proximal lower limb mononeuropathies or lumbosacral
plexopathies remains elusive despite thorough evaluation, including routine
MRI and even, sural nerve biopsy. Empiric medical or surgical treatment is
typically attempted with limited success for neurologic recovery.
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| 2004 Treatment of Osteonecrosis of the Pediatric Femoral Head Following Pyarthrosis, Allston J. Stubbs, MD, Eunice B. Gunneson, PA-C, James R. Urbaniak, MD*, Duke Medical Center, Durham, North Carolina | |||||||||||||||||||||||||||||||||||||
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Pyarthrosis of the pediatric hip can lead to osteonecrosis of the femoral head. When symptomatic, treatment options for this condition are limited. We have hypothesized that free vascularized fibula autografting (FVFG) is an effective treatment for symptomatic osteonecrosis of the pediatric femoral head secondary to pyarthrosis. Our study evaluated seven patients who presented with Stages IV and V osteonecrosis of the femoral head. All patients were treated with free vascularized fibular autografting to the femoral head. Postoperative evaluations of pain symptoms, hip range of motion, and Harris Hip Scores showed improvements in all patients. Hip range of motion was noted to be significantly improved in the arcs of flexion (+23 degrees; p=0.002) and external rotation (+22 degrees; p=0.014). Harris Hip Scores increased significantly from an average preoperative score of 68 to an average postoperative score of 96 (p=0.002). No patients were revised to hip arthrodesis or arthroplasty within the average three year follow-up period. In conclusion, free vascularized fibular autografting is a reasonable option in the treatment of osteonecrosis of the pediatric hip secondary to pyarthrosis.
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| 2004 The Medical Malpractice Insurance Dilemma - A Virginia Perspective, David C. Urquia, MD, Mechanicsville, Virginia | |||||||||||||||||||||||||||||||||||||
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Presented is a summary of
the 2004 legislative effort in the Virginia General Assembly, concerning
tort reform and relief for physicians and hospitals struggling with medical
malpractice issues.
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Abstracts 2003 |
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| 2003 Improved Quadriceps Recovery time in Total Knee Arthroplasty - A Minor Incisional Adjustment, George S. E. Aitken, M.D., Duke Orthopaedics of Person County, Roxboro, NC | |||||||||||||||||||||||||||||||||||||
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Healthcare is under continued pressure to shorten inpatient admission time. Adjusting the surgical approach for Total Knee Arthroplasty to an incision medial to the Quadriceps tendon does shorten the recovery of straight leg raising (SLR) ability. In 75 patients undergoing total knee arthroplasty (TKA) SLR was reached on average in less than 3 days [range 1-7]. This incision compared to a traditional Quadriceps splitting surgical approach has shortened our patients’ recovery of motor control in the operated extremity without affecting outcome. This allows for earlier discharge of the patient from the hospital.
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| 2003 Lateral Parapatellar Approach for Valgus Total Knee Arthroplasty, Frank V. Aluisio, M.D., Greensboro Orthopaedic Center, Greensboro, NC | |||||||||||||||||||||||||||||||||||||
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Primary total
knee arthroplasty in the valgus knee is a challenging and controversial
subject. There is no consensus concerning the most effective way to do
lateral soft tissue release in order to balance the knee. The complication
rate from a medial approach for the valgus knee arthroplasty is higher
than that noted for a varus knee. The surgeons objecting to the lateral
approach indicate that wound complications and disruption of the extensor
mechanism are more likely through that approach than the medial incision.
This study assesses the utility and safety of the lateral parapatellar
approach for valgus total knee arthroplasty. The lateral parapatellar approach was used in 26 knees (23 patients) out of a total of 216 primary total knee arthroplasties (12%). The mean pre-operative radiographic valgus deformity was 18.3 degrees (range 12-30 degrees), and 8 knees had a greater than 20 degree deformity. All cases were performed by the same surgeon using a posterior stabilized femoral component with a fixed bearing tibial component in 13 knees and a mobile bearing in 13 knees. All inserts were posterior stabilized and no additional constraint was necessary. The mean patient age was 68.7 years (39-85 years). The mean tourniquet time was 63 minutes (47-84 minutes) and mean operative time 76 minutes (60-100 minutes). This technique was successful in correcting the deformities to a mean of 5 degrees valgus (range 4-9 degrees). The mean correction was 13 degrees per knee and maximum correction in any knee was 26 degrees. There was one asymptomatic deep venous thrombosis (DVT), one non-fatal pulmonary embolus and 3 urinary tract infections. There were no cases of wound drainage, breakdown or infection and no peroneal nerve palsies. There were also no extensor mechanism complications. Range of motion improved dramatically from pre-operative mean of 109.8 degrees flexion to post-operative mean of 129.6 degrees flexion (range 108-134 degrees). Similarly extension improved from a mean 5 degree contracture to a mean 1.7 degree contracture. No closed manipulations were necessary. The mean follow-up is 19.2 months and the results have not deteriorated with time. There have been no instances of recurrent valgus deformity as have been reported when using the medial parapatellar approach in valgus knees. Most importantly, there were no wound or extensor mechanism complications. The lateral parapatellar approach proved to be a safe and effective means of addressing the complex valgus total knee arthroplasty.
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| 2003 AVOIDING COMPLICATIONS & MANAGING RISK: THE PIEDMONT SURVEY, David E. Attarian, Duke Medical Center, Durham, NC | |||||||||||||||||||||||||||||||||||||
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The current social and medical/ legal economic climates place significant
stress on practicing orthopaedic surgeons. Medical mistakes are cited as
the 8th leading cause of death (up to 98,000/ year); the JCAHO
and government are aggressively promoting patient safety initiatives given
the perceived under-reporting of complications and mistakes by physicians
and hospitals. The malpractice crisis has also caused great angst with
skyrocketing premiums, physician work stoppages, and a lottery mentality
for jury awards. A survey was sent to all members of the Piedmont
Orthopedic Society requesting information on how individual surgeons avoid
complications and manage risk. Eleven percent (40) provided detailed
responses; 65% of the respondents were in private practice and 50%
described themselves as subspecialists. The average time in practice was
22 years (range 1 to 40). The categories for avoiding complications were:
88% specific protocols, e.g. antibiotics, DVT prophylaxis, drain; 63%
preoperative planning; 48% be compulsive/attention to detail/follow
routine; 28% limit or refer complex cases; 23% wrong site surgery
protocol; 23% avoid fatigue/maintain healthy lifestyle; 20% excellent
history and physical; 20% obtain consultation; 15% avoid cutting-edge
techniques; and 13% do only what you do well. The results for managing
risk were: 75% excellent ethical interpersonal relations (Golden Rule);
68% detailed
documentation and informed consent; 18% check on outpatients
postop day #1; 15% emphasize conservative care; 13% follow complications
closely; 13% disengage from problem patients and substandard
physicians/peers; and 10% avoid criticism of others. This survey, although
the response was limited, confirms other polls showing that experienced
orthopaedic surgeons take specific steps to avoid complications and manage
risk. Many surgeons are modifying their practices to limit services as
well as patient access.
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| 2003 Biomechanical and Clinical Implications of Tibial Component Alignment in Total Knee Arthroplasty, Michael E. Berend, MD, Duke University Medical Center, Orthopaedic Laboratory, Durham, NC; Center for Hip and Knee Surgery, Mooresville, IN | |||||||||||||||||||||||||||||||||||||
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The aim of the study was to do a combined biomechanical and clinical study
examining the effects of varus tibial alignment on survival of a total
knee arthroplasty. For the biomechanical testing, fourteen paired fresh
frozen cadaver tibiae had photoelastic coating applied. Right tibiae were
cut in neutral alignment and left tibiae were cut in 5° of varus.
Components were cemented and loaded with 3 times body weight. There was a
statistically significant increased hot spot of concentrated strain in the
posterior medial compartment of the proximal tibia in varus cut bones. In
neutral alignment, the strain was nearly equal medially and laterally.
This increased strain pattern may help explain the mechanism of failure
rates in total knee arthroplasty inserted in varus alignment. Neutral
alignment may have a protective effect. The clinical portion of this
study examined the failure mechanisms of a non-modular metal-backed
cemented tibial component of the AGC design (Biome). Three thousand one
hundred and ninety total knee replacements were reviewed and 40 tibial
components have been revised (1.3%) for four distinct failure mechanisms.
Nineteen were revised for medial bone collapse, 13 for ligamentous
imbalance, 6 for progressive radiolucencies and 2 for pain. Factors
associated with medial tibial bone collapse were tibial component
alignment of greater than 3.9° of varus, increased body mass index of
greater than 33.7 and overall varus limb alignment. No knees were revised
for polyethylene wear or osteolysis. The mechanism of medial bone
collapse may be related to medialtibial edge overload as determined in the
biomechanical study. This study helps emphasize the importance of
component alignment for long term survival of a total knee arthroplasty.
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| 2003 The Relationship Between Femoral Bone Loss and Outcome with a Modular Revision Hip Stem, Michael Bolognesi, M.D., Philip Clifford, M.D, Thomas Parker Vail, M.D., Duke University Medical Center, Durham, NC | |||||||||||||||||||||||||||||||||||||
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Modular hip
arthroplasty stems have been used extensively in revision surgery to treat
both mild and severe cases of bone loss. The purpose of this study was to
analyze the clinical and radiographic performance of a modular revision
hip system when applied to a consecutive cohort of patients with a range
of proximal bone loss. Fifty-three cementless femoral revisions were
performed on an unselected, consecutive series of fifty-two patients
between 1992 and 1997. Type I (n=3), II (n=24), IIIA (n=13), and IIIB
(n=3) bone defects of the proximal femur were included. Minimum follow-up
of two years was required for inclusion in the study. Average follow-up
was 3.9 years (range 2-7.5 years). Forty-two of the forty-three patients
had adequate radiographs for review. Massive proximal femoral replacement
allografts were excluded, but strut, segmental, and cancellous grafting
procedures were included in this study. Two of the forty-three femoral
stems (4.6%, one Type II and one type IIIB defect) required re-revision
due to aseptic loosening. Radiographic evidence of bone ingrowth was noted
in 39 (91%) of the stems. Stable
fibrous ingrowth was seen in three stems
(7%, all type III defects) and definite radiographic loosening was seen in
one stem (type II defect). Femoral component survivorship was 95% for the
entire group using revision as an endpoint. The performance of the SROM
modular hip stem was excellent in all patients with Type I and II defects
(26/27, 96% not revised and 26/27, 96% bone ingrowth). Inferior results
were seen with Type III proximal femoral defects (15/16, 94% not revised
and 13/16, 81% bone ingrowth). Key words: hip revision, modular
stem.
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| 2003 Topography implications for orthopedic implants, E.J. Harvey, S.A. Hacking, M. Tanzer, J.J. Krygier, J.D. Bobyn , Jo Miller Orthopaedic Research Laboratory, Division of Orthopaedics, Departments of Surgery and Biomedical Engineering, McGill University, Montreal, Quebec, Canada | |||||||||||||||||||||||||||||||||||||
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The positive effect of hydroxyapatite (HA) coatings on
osseointegration has been attributed to their chemistry and their ability
to increase the concentration of calcium and phosphate in the
microenvironment immediately adjacent to the implant. Recent work by this
group has illustrated that the relative contribution from the traditional
pathway of surface chemistry may be overstated. The topographies of
so-called “bioactive” surfaces are more important than previously
thought. The purpose of this study was to illustrate the relative
contributions of surface chemistry and topography to the bone forming
tissue response to implants in general. A canine femoral intramedullary
implant model from this laboratory compared the osseous response to
identical commercially pure Ti implants that were either polished, grit
blasted, plasma sprayed with HA or
plasma sprayed with HA and masked with a very thin layer of Ti using
plasma vapor deposition (PVD). The Ti-Mask isolated the chemistry of the
underlying HA layer without changing its surface topography. At 12 weeks
the bone-implant specimens were prepared for undecalcified thin section
histology and serial transverse sections were quantified with
backscattered scanning electron microscopy for the percentage of bone
apposition to the implant surface. Bone apposition averaged 3% for the
polished implants and 23% for the grit blasted implants (p<0.001, paired
Student’s t test). Bone apposition to the HA-coated implants averaged 74%
while bone apposition to the Ti-Mask implants averaged 59% (p<0.001,
paired Student’s t test). Therefore, 80% of the bone forming response to
bioactive implant surfaces was from microtopography alone. The
implications of this finding are wide ranging. It means that many previous
experimental and clinical studies citing the positive effects of HA
coatings have to be critically reviewed and reconsidered with a new
perspective. It also means that future studies of this type have to
maintain absolute control over topography and morphology if implant
chemistry is to be evaluated for its bone response in an implant model or
surgical scenario. It will no longer suffice to “approximately” match
surfaces for topography – this variable must now be eliminated in study
design, not just casually addressed. In addition to these considerations
are the practical issues relating to the manufacturing techniques of
different implant surfaces and their relative cost, reliability, and
benefit to osseointegration. Advantage may well be gained in the future by
more deeply exploring and developing simple and cost-effective methods for
surface texturing of orthopaedic implants that utilize the principles
elucidated in this study. This finding is fundamental to implant design
and has profound implications with respect to basic research and our
understanding of the parameters governing osseointegration.
Edward J Harvey MD MSc, McGill University Health Center, Department of Orthopaedic Surgery, Montreal General Hospital, Room B5.159.5, 1650 Cedar Ave Montreal Quebec Canada H3G 1A4, Phone(514) 937-6011 x42734, Fax (514) 934-8493, ejharvey@hotmail.com
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| 2003 CLOSED, FLEXIBLE INTRAMEDULLARY NAILING OF UNSTABLE PEDIATRIC FOREARM FRACTURES, Anastasios D. Kanellopoulos, M.D., Department of Pediatric Orthopaedics, KAT Accident Hospital, Athens, Greece | |||||||||||||||||||||||||||||||||||||
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The
results of the conservative treatment of unstable pediatric both bone
forearm fractures can be disappointing mainly due to loss of forearm
rotation. Angular malunion greater than 20° can lead to 30° loss of
forearm rotation. The “forgiving” effect of remodelling is to be
inadequate for malunited proximal forearm fractures or fractures with
radio-ulnar angulation in the frontal plane. Fortunately, unstable
fracture patterns account for less than 4% of all both bone forearm
fractures and surgical treatment is usually advised. This study is
focusing on the surgical treatment and the final functional status of
pediatric patients with both bone forearm fractures who underwent
intramedullary stabilization with elastic, titanium nails. We reviewed the medical records and the X-ray folders of 23 children with 23 both bone forearm fractures admitted to the Pediatric Orthopaedics Department between February 2000 and January 2001 due to unstable both bone forearm fractures. There were 14 males and 9 females with a mean age of 10 years (8-14 years). Nine fractures were type I open according to the Gustilo and Andersen classification. The injury was usually caused by fall from a height or secondary to a MVA. The indications for operative fixation included the presence of an unstable fracture pattern, inability to maintain reduction and secondary loss of reduction. Failure to restore angulation to less than 10 degrees in patients older than 8 years, fracture translation and narrowing of the inter-osseous space were considered indications for surgery. Further indications for surgical treatment included all displaced fractures of the proximal third of radius, fractures with significant fracture site comminution and loss of reduction within one week. All open fractures were taken to the operating room for thorough irrigation and debridement and fracture stability was assessed intra-operatively. Under general anesthesia, the fracture was reduced and percutaneous intramedullary nailing followed using flexible titanium alloy nails (Ti6Al4V alloy, ECMES nail™, De Puy International Ltd., Leeds, UK). Closed reduction and percutaneous insertion of the nails was possible in 12 patients. Limited exposure of the fracture site was necessary in 11 patients, including the patients with an open fracture where irrigation and debridement of the fracture site was mandatory. The functional outcome was assessed based upon the system advocated by Price et al. Complications were classified as major or minor according to the criteria set by Luhmann et al. The average hospital stay of the patients was 2 days (1-4 days) and the mean follow up was 27 months (25-36 months). There were no significant intra-operative or post-operative complications although five minor ones were accounted for. Four patients complained of paraesthesiae at the base of the thumb that completely resolved within 3 months and one developed a stitch abscess that resolved with p.o. antibiotics. According to Price et al. all patients were considered having an excellent or good functional result. This study concluded, as many others do, that should surgical treatment of an unstable both bone forearm fracture in a pediatric patient be indicated, intramedullary fixation with titanium nails is dependable.
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| 2003 NANDROLONE DECANOATE AND LOAD INCREASE REMODELING AND STRENGTH IN HUMAN SUPRASPINATUS BIOARTIFICIAL TENDONS, Spero G. Karas, *M.D., Ioannis K. Triantafillopoulos, *M.D., Melissa Maloney, †B.E., William E. Garrett, Jr., *M.D., Ph.D., Albert J. Banes, *†Ph.D., *Department of Orthopaedic Surgery, University of North Carolina School of Medicine, †Flexcell International Corporation, Hillsborough, NC | |||||||||||||||||||||||||||||||||||||
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Background:
No controlled laboratory studies document the effect of anabolic steroids
on human rotator cuff tendons.
Study design: Controlled laboratory study. Hypothesis: Anabolic steroid administration enhances matrix remodeling and improves the biomechanical properties of bioartificially engineered human supraspinatus tendons (BATs). Methods: BATs were treated either with nandrolone decanoate (NLS group, n=18), stretching (LNS group, n=18), or both (LS group, n=18). A control group received no treatment (NLNS group, n=18). BAT’s contractility was assessed by daily scanning, cytoskeletal organization by staining, matrix metalloproteinase-3 (MMP-3) levels by ELISA assay, and biomechanical properties by load-to-failure testing. Results: The LS group showed greatest contractility and the best-organized actin cytoskeleton when compared to the other groups. On the second and third day of treatment, MMP-3 levels in the LS group were significantly greater than those of the NLNS group and greater than NLS and LNS groups. The biomechanical properties in the LS group were significantly improved when compared to NLNS and NLS groups and greater than those in the LNS group. Conclusions: Nandrolone decanoate and load acted synergistically to increase matrix remodeling and biomechanical properties of BATs. Clinical Relevance: Carefully prescribed and monitored anabolic steroids may have an important adjunct role in postoperative healing and rehabilitation of repaired rotator cuff tendons. Acknowledgments: NIH AR38121 References: 1.Tsuzaki M, et al: J Orth Res, in press, 2002. 2.Miles JW, et al: JBJS 74-A: 411-422, 1992. 3.Garvin J, et al: Trans of 48th ORS, 27: 2002.
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| 2003 Throwing Fatigue and Scapular Kinematics: Implications for Injury in Overhead Athletes, Spero G. Karas, M.D., Jamie R. Birkelo, M.S., Darin Padua, Ph.D., Kevin Guskiewicz, Ph.D., Shoulder Service and Department of Exercise and Sports Science, UNC Chapel Hill, NC | |||||||||||||||||||||||||||||||||||||
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INTRODUCTION: The angular velocity generated by the shoulder during
overhead throwing makes it susceptible to injury. Overuse and repetitive microtrauma have also
been implicated in glenohumeral failure in the overhead athlete. The
purpose of this study is to evaluate scapulothoracic kinematics before and
after a bout of prolonged overhead throwing. We will attempt to relate our
findings to injury mechanism and prevention.
METHODS: Thirteen healthy, collegiate pitchers were assessed for changes in periscapular muscle strength and scapular kinematics after a mock baseball game consisting of fifteen pitches per inning over five innings. Motion at the scapulothoracic articulation was tracked with a computerized electromagnetic system with six degrees of freedom before and after the throwing protocol. A manual dynamometer was utilized to evaluate pre and post game strength. A repeated measures ANOVA was used to discern significant differences with an alpha level set at .05. RESULTS: After the prolonged overhead throwing protocol, there were statistically significant differences in global periscapular muscle strength (scapular protractors, retractors, and depressors). With the arm moving from the abducted and externally rotated position into maximum internal rotation, kinematic analysis revealed significantly decreased scapular protraction (p=.035) and acromial cephalad rotation (p=.031) following the throwing protocol. CONCLUSIONS: Prolonged, overhead throwing activity adversely affected periscapular muscle strength and scapular kinematics in our study. We postulate that decreased scapular protraction during follow-through decreases the arc of motion for arm deceleration- thus placing abnormal eccentric load on the biceps, labrum, and posterior rotator cuff. Decreased acromial cephalad rotation also decreases the size of the subacromial space and increases the risk of outlet impingement on the rotator cuff. Knowledge of these phenomena will enable better selective strengthening about the shoulder girdle and help us understand the pathomechanics of shoulder injuries in throwers.
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| 2003 NON-OPERATIVE TREATMENT OF THE FROZEN SHOULDER, Keith Kenter, M.D. and M. Jane Craig, R.N., University of Cincinnati Medical Center, Cincinnati, OH | |||||||||||||||||||||||||||||||||||||
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Purpose:
Frozen shoulder or adhesive capsulitis is a painful and progressive loss
of both active and passive range of motion without any known intrinsic
cause. The natural history and histological stages have been described to
help explain the pathogenesis. There have been conflicting reports
evaluating the effects of intra-articular corticosteroid injections in the
treatment to improve the natural history. We report our non-operative
experience with the use of glenohumeral corticosteroid injections in
patients diagnosed with adhesive capsulitis of the shoulder.
2. No improvement in erect abduction or forward flexion of 20º or 3. No improvement in erect or supine IR or ER of 10º.
A maximum of 3 injections was used.
Patients were followed until complete resolution of symptoms or if
surgical intervention was needed. Successful treatment was considered if
there was complete resolution of pain, full function, and patient
satisfaction. Initial and follow-up ASES and HSS L’Insalata scores were
recorded.
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| 2003 CERVICAL SPINE INJURY AND RESTRAINT SYSTEM USE IN MOTOR VEHICLE COLLISIONS, B. Claytor, P.A. MacLennan, G. McGwin Jr., L.W. Rue, J.S. Kirkpatrick, Departments of Surgery and Epidemiology and the Center for Injury Sciences, University of Alabama at Birmingham, Birmingham, AL | |||||||||||||||||||||||||||||||||||||
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Context-
Motor vehicle collision (MVC) related cervical spine injury is a severe
and often permanently disabling injury. Although advances in automobile
crashworthiness have reduced both fatalities and some severe injuries, the
impact of varying occupant restraint systems (seatbelts and airbags) on
cervical spine injury is unknown.
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| 2003 Complex Regional Pain Syndrome and distal radius fractures: Intermediate-term follow-up, Gamal A. Elsaidi, D.O.; L. Andrew Koman, M.D.; Martha Holden, A.A.S.; Beth P Smith, PhD; Thomas L. Smith, Ph.D.; and Jefferson R. Dudelston, B.S., Wake Forest University School of Medicine, Winston-Salem, NC | |||||||||||||||||||||||||||||||||||||
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Purpose: Study aims were to evaluate the impact of complex regional pain syndrome after distal radius fracture (DRF) on function and health-related quality of life (HRQL) and to correlate outcome after therapeutic interventions. Materials and methods: A retrospective review was conducted on 28 patients (24 women and 4 men) diagnosed with complex regional pain syndrome following distal radius fracture between 1991 and 2000 as diagnosed by a hand surgeon. Mean age at injury was 52.9 (Range: 29-74). Initial fracture management included closed reduction (n=24), open reduction (n=4), external fixation (n=6), open reduction and internal fixation (n=1), and percutaneous pinning (n=5). Sixteen patients had casts. After initial management, 21 patients underwent subsequent surgeries which included wrist fusion, ulna resection, iliac crest bone graft, wrist arthroscope, plate ORIF, repeat external fixation, Darrach procedure, shoulder arthroscope, and intrinsics release. The average time from injury to CRPS diagnosis was 186 days.Treatment of CRPS included autonomic nerve blocks [stellate block (n=5), epidural block (n=2), axillary block (n=1), and infraclavicular brachial plexus block (n=2)]; hand therapy with active and passive range of motion (n=28) and contrast baths (n=28); median nerve decompression (n=7), and oral medications (n=28). Three outcome measures (clinical assessment, standardized validated HRQL instruments, and thermoregulatory testing) were compared between initial diagnosis and after five years of treatment. Statistical analysis included one and two-way analysis of variance (ANOVA). Results: Health-related quality of life instruments: The Levine symptom and functional status scales showed a statistically significant improvement at the 5-year follow up examination when compared to initial examination for both symptom (p=0.003) and function status (p=0.001). The McCabe cold sensitivity severity scale showed no statistically significant improvement at follow up exam. The McGill pain questionnaire showed a statistically significant difference between the initial exam & follow up exam (p=0.048). The Wake Forest University symptom rating scale showed a statistically significant difference between initial exam and follow up exam in pain (p=0.014), weakness (p=0.001), and stiffness (p=0.001) with no statistically significant difference in numbness and cold intolerance between the initial exam and follow up exam. At follow-up exam, when study population’s DASH scores were compared to DASH scores of 36 control subjects (individuals with history of distal radius fractures without CRPS diagnosis), a statistically significant difference between our study group and the control group was found (p=0.002). Thermoregulatory testing: There was no statistically significant difference (p>0.05) in laser Doppler fluxmetry, or digital temperatures between initial exam and follow up exam. This indicates no significant improvement in these parameters. Clinical examination findings at CRPS diagnosis and follow-up exam correlated well with the other outcome measures. Conclusions: At a mean follow up of five years after initial exam (mean 6.6 years post-injury), Compared with uncomplicated DRF, patients with CRPS treated with current protocols demonstrate a significantly diminished function and HRQL and may be impacted positively by active intervention with diminished pain, improved strength, and decreased stiffness; however, numbness and cold intolerance may persist resulting in residual disability in spite of active and vigorous intervention.
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| 2003 Limited Open Incision and Drainage for Pyogenic Flexor Tenosynovitis, Douglas H. Murray, M.D., Atlanta Medical Center; Gary M. Lourie, M.D., The Hand Treatment Center, Atlanta, GA | |||||||||||||||||||||||||||||||||||||
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INTRODUCTION: Surgical
irrigation and debridement with intravenous antibiotics remain the
cornerstone of treatment for pyogenic flexor tenosynovitis. Inadequate
treatment can lead to tendon necrosis with limitation of function, loss of
motion, and pain. Rarely cases that are diagnosed within 48 hours respond
to intravenous antibiotics alone. Historically, wide incisions that close
secondarily have been the recommended treatment. These extensive
incisions often result in stiffness and extended morbidity in terms of
return to work, gain in strength, and function. Catheter irrigation
systems allow limited incisions with more rapid healing and potential
decrease in stiffness with fewer wound problems. The catheter systems
however have not been universally accepted due to many practice problems
including: fluid leakage form the wounds or drains, soft tissue occlusion
of the drain, early loss of drain postoperatively, delay of therapy until
system is removed, and severe pain with catheter irrigation. This study
reports a new incision that maintains the benefits of the limited incision
but does not have the inherent difficulties associated with the catheter
systems. This study evaluated effectiveness of 4 limited midline volar
incisions left open for wound care to assess healing, range of motion, and
return to pre-injury functional levels. A cadaveric study is included to
assess the adequacy of tendon sheath decompression. MATERIALS AND METHODS: Seven patients with clinical evidence of septic flexor tenosynovitis were treated with a limited incision for open irrigation and drainage of the flexor tendon sheath. The sheath was exposed using a limited technique, employing 4 volar-midline skin incisions over the distal palm, proximal phalanx, mid-phalanx, and distal phalanx taking care not to cross the digital creases. Through these incisions the sheath is exposed protecting the A2 and A4 pulleys. A pediatric feeding tube is threaded through each incision into the sheath where vigorous irrigation with bacitracin solution is performed. Once the sheath is adequately drained, the wounds were packed open with bacitracin solution-soaked gauze and the hand splinted in the functional position. Postoperatively on day one, daily whirlpool therapy is instituted with repacking of the wounds, institution of range of motion, and functional splint wear. This was continued for 10-14 days with intravenous antibiotics continued on average of 2-3 weeks followed by p.o. antibiotics. In the cadaveric part of the study, a limited open incision technique was performed on 8 digits from 2 cadaveric hands. Longitudinal volar midline incisions x4 were made over the tendon sheath avoiding the digital creases. The tendon was exposed by longitudinally opening the sheath at the A1, C1, A3, C2, C3 and A5 pulleys leaving the A2 and A4 annular pulleys intact. After exposure, the skin was completely removed to allow inspection of the tendon sheath. RESULTS: All seven patients were followed for approximately 1 year. 6 of 7 patients revealed complete closure of wounds within 3 weeks after surgical drainage. 6 of 7 patients gained full composite flexion being able to flex to the distal palmar crease of the involved digit by time of wound closure, approximately 3 weeks, range 18 to 27 days. The 7th patient demonstrated continued limited motion lacking approximately 3.5 cm. of flexion to the distal palmar crease, but did have preexisting degenerative arthritis involving both the PIP and DIP joint. No complications were noted in the previous 6 patients; specifically no contracture, neurovascular injury, bowstringing, or prolonged healing. None of the patients have required additional procedures up to this point. Dissection of the cadaveric digits revealed that the A2 and A4 pulleys were preserved with complete exposure. Exposure of the remaining tendon sheath was complete in all digits with the limited open incision. In 2 of the digits, approximately 25% of A4 had been incised proximally. The A2 pulley was preserved in all of the cadaveric digits. CONCLUSION: Pyogenic flexor tenosynovitis can lead to devastating hand morbidity. While surgical debridement is recommended, no single technique has gained universal support. The cadaveric study conforms that adequate debridement can be successfully achieved with 4 limited longitudinal incisions. Care must be taken not to cross the digital creases. Further, the incision of the tendon sheath in the distal half of the middle phalangeal wound can violate the 4th proximal annular pulley and requires careful attention. The clinical cases demonstrate adequate debridement achieved without violating the A2 and A4 pulley with expedient wound closure, regaining of full range of motion, and a few soft tissue complications. This limited open incision technique allows successful debridement of the sheath while maintaining the benefits of the limited incision technique without the difficulties inherent to their catheter systems.
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| 2003 Radial-Ulnar Synostosis after the Two-Incision Biceps Repair: A Standardized Treatment Protocol, Dean Sotereanos, M.D., Pittsburgh, PA | |||||||||||||||||||||||||||||||||||||
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Radial ulnar synostosis is the most common complication of the two-incision biceps repair. Thus far, only one study in the literature has described this complication and treatment. Between 1992 and 2000, 8 patients with radioulnar synostosis after a two-incision biceps repair were evaluated and treated with a mean age of 38 (range 29-47) years old. The mean time between tendon repair and resection of the synostosis was 8 (6-18) months. The average follow-up was a 27 (range 13-36) months. An average pronation-supination arc of 27 o (range 0 o – 70 o) was noted preoperatively. Postoperatively all patients underwent post-operative radiotherapy in two divided doses for a total of 700 rads. At an average follow-up of 27 months, it was noted that the rotation arc of the forearm improved to 155 o (range 140 o - 170 o) with an average gain of 128 degrees. The strength of supination was 80% (range 70% - 90%) of the contralateral limb. Seven of the eight patients had no pain after activities of daily living or work. One had mild pain after prolonged activity. No radiographic or clinical evidence of synostosis recurrence was noted at final follow-up. The posterolateral incision was extended and the interval between the extensor digitorum communis and the extensor carpi radialis brevis is developed to expose the supinator muscle. The posterior interosseous nerve is identified and protected. The synostosis is subperiosteally exposed through a separate interval, from the ulna to the radius. After resection, bone wax is applied over bleeding surfaces, the wound is irrigated and the tourniquet is released to obtain excellent hemostasis. A drain is placed for 24 hours.
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| 2003 Pediatric Orthopaedic Problems in the Developing World, David A. Spiegel, M.D., Shriners Hospital for Children, Minneapolis, MN | |||||||||||||||||||||||||||||||||||||
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The sequelae of musculoskeletal infections represent an important cause of
disability in developing countries,
especially as many cases present at later stages of involvement. Chronic
osteomyelitis is usually due to untreated acute hematogenous
osteomyelitis. Treatment includes aggressive debridement of all
infected/devitalized tissue, and antibiotics as an adjunct to surgery.
Related concerns include dead space management, treatment of segmental
bone loss and/or angular deformity, and addressing limb length
inequality. Sequestrectomy should be delayed until a sufficient
involucrum has formed, and bone loss may be managed by conventional
grafting, open cancellous grafting for subcutaneous bones (Papineau), or
bone transport if the resources are available. External fixation may
facilitate grafting procedures. For extensive loss of the tibial
diaphysis, transfer of the ipsilateral fibula may be successful. Musculoskeletal manifestations of tuberculosis include arthritis, osteomyelitis, and spondylitis. With adequate compliance, current chemotherapeutic protocols should successfully eradicate more than 90% of cases of osteoarticular tuberculosis. Surgery serves as an adjunct to chemotherapy. Articular involvement begins with a proliferation of synovial granulation tissue, which is followed by marginal erosions, and ultimately destruction of the joint. Early diagnosis is essential as outcome depends upon the degree of involvement at presentation. In addition to chemotherapy, splinting and early motion help prevent contractures. Surgical indications include biopsy for diagnosis, synovectomy/debridement (controversial), and salvage procedures including resection arthroplasty (hip), arthrodesis, osteotomy, and total joint arthroplasty. Skeletal tuberculosis most commonly presents as a lytic lesion with a sclerotic rim, but may also have an aggressive appearance (periosteal reaction, small sequestra). Uncommon forms include cystic (no sclerotic rim, children, diverse sites, may be multicystic), disseminated (compromised host, appendicular in children, skull/axial in adults), closed multiple tubercular diaphysitis (very rare, children, swelling in forearms and legs with diaphyseal thickening and sclerosis), and tubercular rheumatism (Poncet’s disease, multiple effusions). Skeletal lesions may invade neighboring joints, and may cross the physis. Sinuses are common, and up to 50% of these may be superinfected by bacteria. The disease focus in tuberculous spondylitis (Pott’s disease) is usually within the vertebral bodies, and chemotherapy is the mainstay of treatment. Neurologic deficits may occur during the active phase (abscess, granulation tissue, sequestra) or the healed phase (transverse ridge of bone at the apex, dural fibrosis). A subset of patients will develop a significant kyphosis (» 5% > 60°) despite treatment, and risk factors include age (children), thoracic involvement, multiple levels of involvement, and greater initial loss of vertebral height. The indications for surgery remain controversial, and include establishing the diagnosis, decompressing the neural elements, preventing the development of significant deformities in those at risk, and shortening the duration of symptoms. Surgical approaches include anterior (most common), posterior (laminectomy for isolated posterior or intradural disease), and anterior and posterior (significant kyphosis, high risk of significant kyphosis). In patients unable to tolerate an anterior approach to the spine, costotransversectomy allows drainage of abscesses, while the lateral extrapleural approach allows decompression of the spinal cord and grafting. Instrumentation is not contraindicated in mycobacterial infections.
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| 2003 The Morbidity and Mortality of Simultaneous Bilateral, Staged Bilateral, and Unilateral Total Knee Arthroplasty, Cary Tanner, M.D., Vincent Pellegrini, M.D. and Marlene Smith, R.N., Fresno, CA | |||||||||||||||||||||||||||||||||||||
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Factors associated with the morbidity and mortality of total knee arthroplasty (TKA) were studied. Outcome data was obtained for 479 consecutive patients who underwent 618 procedures from 1998 to 2001. 114 patients underwent simultaneous bilateral TKA, 25 patients underwent staged bilateral TKA, and 340 patients underwent unilateral TKA. All of the significant differences between the groups occurred within the first few post-operative weeks. No significant differences between any of the groups were found in those patients with fewer than three medical comorbidities. In patients with three or more comorbidities, those undergoing simultaneous bilateral TKA were more likely to sustain complications with potential long term consequences compared to those undergoing two unilateral total knee replacements. Age over 70, independent of comorbidities, was associated with an increased risk of severe complication and death only in the bilateral TKA group. Body mass index, the surgeon’s experience with TKA, the sex of the patient, the type of anesthesia, and the type of comorbidity, were not found to influence the outcomes between groups. When the costs associated with complications are accounted for, the potential cost benefit of simultaneous bilateral TKA may be less than previously estimated.
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| 2003 Reconstruction and Repair of the Medial Collateral Ligament Complex of the Knee for Isolated Chronic Medial Instability: A Preliminary Report, Dean Taylor, M.D. and Keith Lonergan, M.D., West Point, New York | |||||||||||||||||||||||||||||||||||||
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Recent recommendations for the management of medial collateral ligament (MCL) sprains have emphasized nonoperative treatment. Over the last 6 years we have noted that some patients treated nonoperatively have persistent pain and/or instability of the knee. The purpose of this study was to evaluate the results of the late treatment of these patients who have chronic medial collateral ligament injuries. METHODS: This is a retrospective, observational study. All patients had isolated MCL injuries and underwent an operation for complaints of pain and/or instability. The operations included anatomic repair of the superficial and deep portions of the MCL and of the posterior oblique ligament. Additionally, the semitendinosis tendon was used to reinforce and protect the repair. The study group includes nine patients operated on between 1997 and 2002. Eight were male. Average age was 25 (18-40). The average time from injury to operation was 18months. Eight patients had follow-up evaluations at an average of 36 months (6-56); one patient was only one month postop. Patients’ follow-up evaluations included physical examination measures, radiographs, and isokinetic strength testing. We used the Lysholm and SANE outcome measures, and assessed activity level on the Tegner scale. RESULTS: All patients were able to return to their preoperative level of activity. Postoperative surveys and physical examinations were performed. All eight patients demonstrated less valgus laxity at follow-up with five Grade I and three Grade 0. The average Single Assessment Numeric Evaluation (SANE) rating was 87 (range 70-100), average Lysholm score was 87 (range 81-95), and average Tegner activity score was 7 (range 4-9). The IKDC results were 2 normal, 5 nearly normal, and 1 slightly abnormal. All individuals regained their preoperative range of motion and had a negative Swain Test. One individual developed stiffness and underwent a manipulation under anesthesia without further sequelae. Three of four individuals who had the double limb grafts developed problems with the screw and spiked washer on the femoral epicondyle and requested hardware removal. DISCUSSION: This is a preliminary report of our experience in surgically treating isolated chronic MCL injuries. The study should bring out two interesting points for discussion: (1) Do some isolated MCL sprains need surgical treatment acutely, and if so, which ones?, and (2) What is the best treatment for persistent symptoms following an MCL sprain? Nonoperative? Repair/reconstruction? Trephination of the ligament from inside the joint? “Microperforation” from outside the joint?
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| 2003 Piedmont Orthopaedic Society Scientific Committee Reports From Membership – Two Surveys, David Urquia, M.D., Richmond, Virginia | |||||||||||||||||||||||||||||||||||||
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Two individual surveys were available to Society members through direct mailings and through official website. These results were summarized and presented to the membership. Survey 1 : Sports Recommendations for Total Knee Patients, and Cervical Fusion Patients. (50 respondents) #1 Unilateral TKA : 100% for biking, swimming, fishing, golf. 82% for hunting 49% for hiking, tennis 31% for skiing 11% jogging #2 Bilateral TKA : 100% for biking, swimming, fishing 95% for golf 80% for hunting 37% for tennis, hiking 24% for skiing 7% for racquetball, jogging #3 Cervical Fusion (single level ACDF): 50% of respondents approved of contact sports. Survey 2 : Emergency Room Coverage for Unassigned Orthopaedic Surgeons (63 Respondents) 90% of MD's under age of 56 still taking Call. 19% of respondents anticipating retirement prior to age 60. Vast majority of surgeons in academic practices rarely went to ER's themselves to see patients. A trend toward full-time Orthopaedic Tramatologists, but mainly at the major academic medical centers, rarely at private hospital. A trend toward private hospitals paying daily cash stipends for Orthopaedic coverage of their ER's.
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| 2003 Musculoskeletal Tumors, An Interactive Clinical, Radiology and Pathology CD-ROM Textbook, William G. Ward, Carol A. Boles, Scott Kilpatrick, Marcus Duda, Wake Forest University School of Medicine, Winston-Salem, NC | |||||||||||||||||||||||||||||||||||||
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Purpose: The authors developed a case-based, interactive computerized program to teach and assess the musculoskeletal pathology knowledge of orthopaedic surgeons, pathologists and radiologists. Cases were chosen to illustrate basic entities, with emphasis on the clinical presentation, image interpretation, histology interpretation, diagnosis establishment and treatment knowledge. Evolving technology allowed creation of a CME ready, commercially viable educational program particularly aimed at orthopaedic surgeons. Introduction: This clinical-radiological-histological interactive training program was developed as an outgrowth from a regional musculoskeletal pathology course that was taught by the combined faculties of Duke University, Wake Forest University School of Medicine, University of North Carolina School of Medicine, the Charlotte Orthopaedic training program, Medical University of South Carolina, and Emory University faculty. This clinical radiologic histologic interactive training activity evolved from a case based program utilizing 5 x 7 black and white radiographic image copies and actual glass slide histology microscopic examinations, into a highly sophisticated, yet easy to use interactive program that allows the learner to view 200 cases of musculoskeletal tumors and tumor-like conditions that require correlation of clinical, radiographic and histologic material to illustrate basic teaching points of musculoskeletal pathology and musculoskeletal tumor management. The activity was designed to allow the reader to perform his own interpretations with annotated interpretations provided that can be viewed or hidden from view depending on the viewer's preference. These cases may be selected randomly or they may be selected on the base of diagnosis, anatomic area, imaging modality, patient age grouping, tissue type (bone versus soft tissue) and benign versus malignant. The learner objectives are as follows:
References are provided, but not all inclusive, but include references utilized by the authors during their preparation of the program and/or references utilized by the authors during their training and references believed by the authors to be useful to students. The content also reflects the input of the many mentors the authors had over the years, whose teaching are reflected in this work, but whom may not be formally acknowledged. Method: From over 2000 cases performed by the primary surgeon, 200 classic cases were selected. Each case presented at least one unique teaching point that the senior author felt was quite instructive for the orthopaedic learner as well as the pathology and radiology learner. The images were captured with state-of-the-art imaging technology. Each case presents with a brief clinical history followed by thumbnails of the radiographic and histologic images allowing the user to complete the interactive quiz for the radiologic and the final clinical radiologic histologic diagnosis. Treatment Discussion: This is provided along with an interpretation of each of the studies, allowing the user to fully assess their knowledge. Results: The CD-ROM has been utilized by the author at his own institution and residents who have used the program have raved about its ability to prepare them for both clinical practice and for board examinations. It was well received at the Piedmont Orthopaedic Society and presented in his interactive format as well as at other venues. Conclusion: This interactive educational activity is designed to meet the need of busy practitioners allowing them to review these topics in a concise case based format facilitates retention as opposed to the rather dry encyclopedic format of most musculoskeletal pathology. Interactive nature maintains the clinician's interest. The educational activity is eligible for a maximum of 16.5 hours of Category 1 CME credit as defined on the author's website, Innovativecognition.com from which additional descriptive information as well as potential ordering information is available.
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| 2003 Congenital Clubfoot – 52 Years Experience: Studies Emphasizing Treatment and Outcomes Based on Severity Ratings, J. Leonard Goldner, M.D., Robert D. Fitch, M.D., Duke University Medical Center, Durham, NC | |||||||||||||||||||||||||||||||||||||
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From 1946 to 1952 I used the Kite method for management of idiopathic
clubfeet. During that time, clubfeet were separated into idiopathic and
teratologic based on both severity and the presence of other systemic
deficiencies. The method included: (1) pre-treatment attempts to rate
severity; (2) frequent change of above knee plaster casts attempting to
diminish forefoot adduction, cavus, hindfoot internal rotation and
inversion; malposition of the talus in the ankle mortise, and equinus
related to triceps surae contracture and contracture of the posterior
tibiotalar calcaneal capsule.
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| 2003 Acetabulum Fractures: MUSC Experience, Langdon A. Hartsock, MD, FACS, Medical University of South Carolina, Charleston, SC | |||||||||||||||||||||||||||||||||||||
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Introduction: Acetabulum fractures (AF) are
uncommon injuries. This study documents a single surgeon's experience
in a single institution.
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| 2003 The Place of Osteotomy in the Treatment of Knee Instability, Peter J. Fowler, M.D., University of Western Ontario, London, Ontario, Canada | |||||||||||||||||||||||||||||||||||||
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The goal of HTO in instabilities, arthrosis and cartilage and meniscal saving procedures is to correct or overcorrect the mechanical axis. Pre-operative radiographs include standing hip-to-ankle views to target the weight-bearing axis and lateral views to assess posterior tibial slope. It is important to keep in mind that increasing the posterior tibial slope will aggravate an ACL deficit, but help a PCL deficit. As well, the location of erosions and wear patterns will vary depending on the knee’s stability, whether it is ACL or PCL deficient and on the status of the meniscii. With an intact ACL there is anteromedial arthrosis, while in ACL deficiency posteromedial arthrosis is frequently seen. It is important to tailor the osteotomy to the pathology.
The author’s
preferred technique of HTO is opening wedge with Puddu A clinical and radiographic review of 22 opening wedge high tibial osteotomies in 20 patients with chronic posterior or posterolateral instability was carried out at our centre. Knee stability was significantly improved in 60% of cases, somewhat improved in 35% and unchanged in 5%. All 20 patients would undergo the procedure again. Alignment was altered a mean of 4° valgus and posterior tibial slope was increased a mean of 7°. We concluded that good functional and radiographic results can be achieved with biplanar corrections. Osteotomy may be combined with soft tissue surgery. However, correction of alignment should be the first order of business and may be the only surgical intervention required. If deemed necessary, soft tissue procedures can be done at a later date. Overcorrection of alignment should not be the goal in patients with instability alone. Osteotomies about the knee can be either femoral or tibial and opening or closing, depending on surgeon preference and experience.
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Abstracts 2002 |
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2002 MY RECOLLECTIONS OF THE EARLY DUKE EDUCATIONAL PROGRAM IN ORTHOPAEDICS, John Adams, M.D.*, M.P.H., 804 Bay Avenue, Lewes, DE |
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This meeting is a 50/50 meeting for me, as I was Chief Resident at Duke 50 years ago. My awareness of the Duke Orthopaedic Program began when Lenox D. Baker visited the 49th General Hospital in Tokyo where I was stationed as a medical officer on the orthopaedic service in the United States Army. After Dr. Baker had been there for a few days, he offered me a position on the Duke Residency Program to begin July 1, 1949. Prior to my entering the program, I learned even more about Duke from Dean Wilburt Davison when he visited the 49th General Hospital as a Pediatric consultant. In 1949, J. Leonard Goldner was the Chief resident, six residents of the total program were assigned to Duke. There were two residents on the public service, one on the private service, and one at Lincoln Hospital which was in Durham but away from Duke. One resident was assigned to basic science, which was a six month rotation on either Anatomy or Pathology. At that time, Dr. Baker was the only full time faculty on orthopaedics and Dr. Beverly Raney was half time. Dr. Everett Bugg who had a private practice in Durham was part time faculty as other residents were assigned to the city hospital Watts and to Lincoln Hospital. At Duke, we did surgery three days a week, running two rooms simultaneously. There were outpatient clinics every day, we were on call every other night, and we had patient rounds each morning at 6:00 a.m. and teaching rounds three times a week including Sunday. All clinic notes had to be written or dictated before the resident left the hospital. Other residents during this period were E. E. Bleck, Don Eyler, Ralph Coonrad, Paul Thompson, Les Meyer, Rick Wrenn, Jim Funk, and Gary Hough. My second six month rotation was on General Pathology under Dr. Wiley Forbus, a master in General Pathology. This rotation was unique and valuable to my education. I completed my year rotation at the Private Diagnostic Clinic and Lincoln Hospital and on January 1, 1950 began a twelve month rotation away from Duke at the North Carolina Orthopaedic Hospital (NCOH) in Gastonia, North Carolina, which is twenty miles from Charlotte. Dr. William Roberts was the Chief Surgeon, there were approximately 150 patients, and the common diagnoses at that time were osteomyelitis, poliomyelitis, tuberculosis, acute and chronic burns, and congenital anomalies. At that time, streptomycin had not yet been introduced for the treatment of tuberculosis and the Salk vaccine had not been completely developed. In 1950, practically all patients who had scoliosis in North Carolina were treated through NCOH. Most patients treated for scoliosis remained in the hospital for a year and required inpatient schooling and special nursing care. There was one operating day each week with several patients being completed. Large outpatient clinics were held each day. An outlying clinic was attended once each month in Goldsboro, North Carolina, which was approximately 200 miles from Gastonia, 80 miles from Durham, and 80 miles from the Eastern Coast of North Carolina. At this clinic, approximately 100 patients, new and follow-up, would be seen in order to provide follow-up for patients from Eastern North Carolina. At that clinic, Dr. Goldner would attend from Duke and treat the patients with clubfeet. The average clinic had about twenty patients with cast changes. This is where he was introduced to the complex problem of clubfeet from which he developed his practical approach. Operative treatment of patients at Gastonia was an “eye opener”. All anesthesia was given by a nurse anesthetist. Several hundred scoliosis patients had been operated upon by Dr. Roberts during the several years that he had been there, and there had been no intubation and no blood transfusions. The mortality rate was zero. Operative cases seldom lasted more then one hour. A triple arthrodesis, for example, took approximately twenty minutes, there was no internal fixation, and the foot was molded and held in a long leg cast. Dr. Roberts was an expert surgeon, worked rapidly in the operating room, and made all of his decisions before the operation began. I was Chief Resident at Duke beginning July 1, 1951. This was the same year that the North Carolina Cerebral Palsy Hospital opened. Lenox Baker was the Medical Director and he had been working toward developing this unit for several years. Duke gave the land and the State built the hospital. During that first year, there was a meeting of the American Academy for Cerebral Palsy. The topics on the program were classification of cerebral palsy; diagnosis and treatment, which included discussions about bracing, surgery, physical therapy, and combinations of these modalities. Len Goldner had joined the full time faculty as of July 1, 1950 and at the Cerebral Palsy meeting, he presented several patients who had upper extremity problems that he had treated surgically. Winthrop Phelps, the national authority on the subject, was there and he expressed his surprise at the “aggressive approach to children with cerebral palsy who had upper extremity problems”. It was his policy to wait until they were full grown to even consider surgical treatment. New energy, new ideas, and new results were evident during that meeting. During my year as Chief Resident, I was introduced to our first full time anesthesiologist and observed the formation of a residency training program by Dr. Ronald Stephens who was Chief of the Division of Anesthesiology. The time interval between cases elongated, but the clinical and research information improved. There were many incidents that punctuated my Duke experience such as: (1) when the orthopaedic service acquired its first Chick Fracture Table. Dr. Baker was attached to the old Hawley Table. More than one time he would kick the new Chick Table as he walked by it. Sub-capital fractures of the hip in elderly patients were treated in the sub-basement Radiology room where the portable x-rays could be taken quickly. There was no fluoroscope in the operating room. In the Radiology Department, at that time, the resuscitation equipment was minimal. The set up for holding the patient was limited by the way the AP and the lateral x-ray was taken. We usually positioned the fractured extremity in such a way that the first year resident would put traction on the extremity and sit under the drapes while the procedure was being done. Dr. Goldner was instrumental in eliminating that undesirable location for this procedure. Our clinical experiences and our basic science rotation were augmented by outreach clinics held in county health departments throughout the State. On a regular basis, each resident would attend outlying clinics where children and adults could be seen in follow-up and in consultation. Local referring physicians and public health nurses directed patients to the “orthopaedic clinics” for advice and treatment by the orthopaedic consultant from Duke. In this way, the residents experienced graduated responsibility and learned how to communicate with referring individuals. Also, the experience of talking to a patient from a rural community surrounded by several members of the family was somewhat different than the protected environment of Duke Hospital. All in all, during my Duke residency, I was associated with enthusiastic colleagues and a teaching staff that had no equal. The faculty members gave the necessary time and effort to encourage residents, to work with them on clinical and laboratory projects, and to provide them with useful role models. Duke was one of the stellar teaching programs even at that time. Education for the residents has increased both clinically and in the research laboratory and the current residents are outstanding. There is great pride in knowing that I was part of and associated with the Duke Orthopaedic Residency Program during its formative years. * Professor and Chairman Emeritus, Department of Orthopaedic Surgery, Washington Medical Center
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| 2002 Hook of the Hamate Fractures in Competitive Golfers: Results of TreatmENT, Julian M. Aldridge, M.D., Duke University Medical Center, Durham, North Carolina | |||||||||||||||||||||||||||||||||||||
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We present seven competitive golfers with an isolated fracture of the hook
of the hamate. All seven patients were treated with excision of the
fractured hook of the hamate, with complete resolution of their pain, and
a return to their previous level of play. For this group of patients,
with a history of hitting in excess of 200 golf balls per day in addition
to 18 holes of golf, it is reasonable to consider this fracture pattern
the result of an overuse or repetitive motion injury. Regardless of
etiology, prompt diagnosis and treatment with excision of the fractured
hook of the hamate bone is safe and reliably allows competitive golfers to
return to their pre-injury level of competition.
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2002 Revision Anterior Cruciate Ligament Reconstruction Using a Reharvested Ipsilateral Patella Tendon, Colosimo, AJ; Heidt, R.S. Jr.; Traub, JA; Carlonas, RL; University Sports Medicine Center, Cincinnati, Ohio |
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The patellar tendon remains the most popular graft for anterior cruciate
ligament (ACL) reconstruction and has been proven to be the strongest
substitute. From 1991 to 1998, we performed revision ACL reconstruction
using the reharvested central third of the ipsilateral patellar tendon in
15 patients. Adequate follow-up was obtained on 13 of these 15 patients.
The results in these 13 patients (mean age, 27.2 yr) were reviewed. At an
average postoperative follow-up of 39.4 months (range 24 – 65), 11
patients had good or excellent results while 2 patients had fair results.
Clinical examination revealed an average Tegner knee score of 5.8 (range,
3 to 9) and an average Lysholm knee score of 77.6 (range, 61 to 98).
Postoperative KT-1000 arthrometer results showed an average side-to-side
difference of 1.92 (range, -2.0 to 4.0). No patient demonstrated any loss
of range of motion and only one reported patellofemoral problems. These
favorable results demonstrate that, with appropriate patient selection,
the use of a reharvested central third patellar tendon is a viable option
for revision of a failed ACL reconstruction.
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2002 A RETROSPECTIVE STUDY OF PERCUTANEOUS HEEL CORD REPAIRS, Andrew Bullington, John Xerogeanes, M.D., Lamar Fleming, M.D., Emory University School of Medicine, Atlanta, Georgia |
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Ruptures of the Achilles tendon may be managed by three different
methods: open repair, percutaneous repair, non-operative management.
Through the years, it has been shown that percutaneous repairs have as
good or better results than open repairs. The complications of
percutaneous repairs are minimal and the two-year results are similar to
those of open repair. The design of this study was to have the patients
fill out subjective questionnaires dealing with satisfaction with the
procedure, and their postoperative function, strength and comfort. The
circumference of the calves was measured to see if return of muscle size
has occurred and to evaluate the complications. During the last ten
years, twenty-five individuals have undergone percutaneous repairs with an
average follow-up of two years. There have been no long term
complications, all have healed, and all have gone back to their previous
recreational activities. Two sequelae occurred at one year. The nylon
that was used in initial patients caused a stitch irritation and had to be
removed under a local anesthesia. The suture we are now using is Maxon
zero sized. The rehabilitation program: the patients are placed in a
splint for seven to ten days then placed in an Vacoachil splint at 30° of
plantar flexion. After two weeks, this was reduced to 15°. At six weeks
post-op, the foot was placed at 0°. At two weeks, the patient removed the
brace for active exercise; primarily plantar flexion without resistance.
At six weeks, when they are walking full weight bearing, they can start
concentric exercises. At three months, the individual can do eccentric
exercises; at six months they may return to athletic activities such as
running and jumping. No re-ruptures occurred and no one has been unable
to return to their previous recreational activities. We think this is a
promising alternative to a closed- or open repair for those individuals
who are not high-performance athletes. An important advantage is to avoid
a long skin incision.
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| 2002 RESULTS OF ANTERIOR DUAL ROD INSTRUMENTATION FOR SINGLE MAJOR CURVE SPINE DEFORMITY SURGERY, R.W. Gaines, Jr., M.D., Columbia Orthopaedic Group, Columbia, Missouri | |||||||||||||||||||||||||||||||||||||
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· The outcome of the first 10 patients operated by a single surgeon by a new instrumentation with KASS (Kaneda Anterior Spine System) was assessed. · The average follow-up was 4.0 years (mean 3.6) following the operative correction. There was follow-up on every patient. · Average preoperative curve was 52º. · Average correction was 37.9º (73% correction). · The sagittal plane was corrected toward normal in every patient. · No interbody spacers or grafts were used in any patient. · Bone-on-bone interbody apposition was achieved during each patient’s surgery. · The average number of vertebrae instrumented was 4.7 (mean4.5), which was half the levels of standard posterior instrumentation. · Average operative time was 4 ½ hours and average blood loss was 850 cc. · There were no serious complications. · All patients wore a postoperative TLSO until radiographic interbody healing was evident. Fusion occurred at an average of 2 ½ months.
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2002 SYMPOSIUM ABOUT THE 50th ANNIVERSARY (PHASE I) OF THE PIEDMONT ORTHOPEDIC SOCIETY, J. Leonard Goldner, M.D., James B. Duke Professor and Chairman Emeritus, Orthopaedic Surgery, Duke University Medical Center; Executive Secretary Piedmont Orthopedic Society |
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The Piedmont Orthopedic Society had its 50th Anniversary (Phase I) in Durham, North Carolina at Duke University Medical Center on May 14, 2002. The meeting was split between Durham and Bermuda. During the initial segment of the meeting in Durham, several individuals were recognized as contributors to the Piedmont Orthopedic Society; foremost among them was Mrs. J. Leonard Goldner who was awarded an Honorary Professorship in the organization. Her dedication to the members and to the development of the Society during the past fifty years was recognized by the membership as being a critical aspect of the interest that the members maintained not only in each other but in the Society as a whole. During the first segment of the Duke meeting on May 14, there was an orthopaedic symposium that included information about the history of the Piedmont Orthopedic Society, the early educational program of Duke residents, and the contributions by several members of the Society who had been involved for as long as fifty years and as short a time as two years. VIGNETTE OF THE HISTORY OF THE PIEDMONT ORTHOPEDIC SOCIETY In 1950, J. Leonard Goldner, Walter Hoyt, Jr., Jack C. Hughston, and Ned Shutkin agreed that the members of the Duke Orthopaedic and Affiliated Training Program should continue to correspond, communicate as a group, and to establish cooperative orthopaedic studies among institutions beginning then and in the future. Furthermore, from the Society would originate a Piedmont Orthopedic Foundation sponsored by the members with the interest from the endowment being returned to residents in training at Duke for pilot orthopaedic research projects. The Society was incorporated in 1951 in Tennessee by Don Eyler; the Foundation was incorporated in Charlotte, North Carolina by Wayne Lee. The requirement for membership by physicians or scientists was to spend at least one year on the Duke Orthopaedic Educational Program and to continue to be active in clinical or research orthopaedics. The initial number of members was approximately forty and the current membership is approximately 500. The first meeting was held in Durham at Duke in 1953, the second meeting was in Nashville, Tennessee in 1954 with Don Eyler as Chairman, the third meeting was in Winston-Salem, North Carolina in 1955 with Cabell Young as Chairman, and the fourth meeting at Sea Island, Georgia with Jack Hughston as Chairman. Every other year, from that time on, the meeting was held at Sea Island, Georgia with new Chairmen being selected each year and an elected Executive Committee. The Piedmont Orthopedic Foundation also had an Executive Committee and a Secretary/Treasurer. The first research grant from the Foundation was awarded to Donald Ferlic in 1963. The Piedmont Orthopedic Foundation has awarded approximately 107 grants since the Foundation was formed. The average amount of each grant was $5,000. Numerous publications, exhibits, presentations, and additional projects resulted from these awards. The structure of the Piedmont Orthopedic Society and the Foundation have enlarged and changed in keeping with changing times since the origin of each organization. The Annual meeting each May continues with new Chairmen for each meeting; there is a Mid-Year meeting held at the same time as the meeting of the American Academy of Orthopaedic Surgeons. The Foundation meets during the Annual meeting in May. The business of the Foundation is carried on during the year by mail, telephone conference, and by the officers of the Foundation who have changed approximately every five years. When you begin a project, establish an organization, or formulate a society with common goals you never know where the end will be. Several things happened during the past fifty years as the organization matured. 1. Organizational memory was kept alive. 2. Personal friendships grew, developed, and became more meaningful and mature as time passed. 3. The role model was passed to the younger members of the organization. As the young become mature, the requirements of the older members diminish. The energy and enthusiasm of the younger members results in new goals, ideas, and accomplishments. The Piedmont was selected as the name of the Society and the Foundation because it represented the location of Duke and the Affiliated Programs at the foothills at the base of the mountain, which describes Central North Carolina, which is geographically a Piedmont area.
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| 2002 Technical Errors: An Analysis of Malunions and Nonunions, John A. Dorizas, MD, Robert Morgan, BS, Catherine Petty, BS, Langdon A. Hartsock, MD, FACS, Department of Orthopaedic Surgery, Medical University of South Carolina, Charleston, South Carolina | |||||||||||||||||||||||||||||||||||||
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Mal-unions and non-unions of the skeleton result in increased morbidity
and cost to patients. We analyzed 41 mal-unions and 82 non-unions treated
by a single surgeon in our attempt to determine the underlying cause of
the malunion or nonunion. This study indicated that in patients with
mal-union there was a problem 58.5% of the time in understanding the
severity or stability of the fracture on preoperative radiograph. The
study showed that technical errors preoperatively and intraoperatively
most frequently led to a mal-union. Incorrect choice of implant or
incorrect use of the implant was common. Patient non-compliance was an
infrequent cause of mal-union or non-union. Incidence of mal-union and
non-union can be decreased by careful preoperative analysis of the injury
and adequate preoperative planning to make certain that the proper implant
is used to stabilize the fracture. Fractures that are complex or seen
infrequently may need referral to centers where specialized equipment and
expertise are available.
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2002 Type III Odontoid Fractures with Distraction: An Unstable Injury, John Kirkpatrick, M.D., Todd Sheils, M.D., and Steven Theiss, M.D., Division of Orthopaedic Surgery, Spine Surgery, The University of Alabama at Birmingham |
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Introduction: Type III odontoid fractures are typically felt to be stable injuries and heal without surgical intervention. Type III injuries presenting with distraction have vertical instability and represent a specific injury requiring aggressive surgical intervention. The purpose of this study was to review three cases and raise awareness of this unusual injury. Methods: Three patients with acute traumatic Type III odontoid fractures and associated vertical instability were treated between 1998 and 2000. All three patients presented with vertical displacement of the odontoid on initial radiograph. Clinical records and imaging studies were reviewed. Results: Upon presentation, each Type III odontoid fracture extended into one or both facet joint and had at least 5 mm of vertical displacement on CT scan and/ or radiographs. Each was initially treated with halo vest immobilization without traction. Reduction was lost in each case due to continued vertical instability. Two cases were noted to have dynamic instability with respiration when the fracture was viewed under fluoroscopy. All cases were noted to have posterior C1-C2 capsule and ligament disruption. One patient presented with a dense brachial plexus palsy and one had incomplete quadriplegia with cranial nerve VI palsy. The third patient was initially neurologically intact but became quadriplegic after reduction was lost in the halo vest. Hemodynamic and hematologic instability prevented acute surgical management in the face of progressive deficit. Definitive treatment consisted of Brooks C1-C2 sublaminar wiring with halo immobilization, C1-C2 transarticular screws with halo, and staged C1-C2 transarticular screws with wiring and halo. Discussion: Skeletal traction for reduction and halo immobilization is standard treatment for Type III odontoid fractures. In a vertically unstable Type III odontoid fracture, this treatment is likely to have unfavorable results. Obvious vertical displacement should alert one to vertical instability. Vertically unstable Type III odontoid fractures should be suspected when any distraction of the odontoid fragment or posterior elements is noted in high energy trauma. When present, early surgical stabilization with internal fixation should be performed. We favor transarticular screws to assist in and maintain reduction of the fracture.
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| 2002 Indications for Surgery in the Upper Extremity in Cerebral Palsy, Koman, LA. Wake Forest University School of Medicine, Winston-Salem, NC | |||||||||||||||||||||||||||||||||||||
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Cerebral palsy affects 700,000 to 800,000 children and adults in the United States, with 80% of hemiplegic and quadriplegic limbs being significantly affected. Patients may be compromised by spasticity, movement disorders, and problems with sensibility. Movement disorders are a relative contraindication to soft tissue procedures. Although the predominant pattern of deformity is one of shoulder internal rotation, elbow flexion, forearm pronation, wrist flexion, finger flexion and thumb-in-palm, variant patterns exist and produce difficulties. Patients can be assessed by a variety of methods including classic classifications (eg, Green & Banks; Hoffer). In addition, tests which assess a function such as the Melbourn or the Quest, are available. Tests of dexterity include the Jebson Pickup. Assessment should include all of these aspects as well as electromyography in selected patients. Using these guidelines, a variety of soft tissue and bony procedures can improve 10 to 20 percent of patients with upper extremity involvement.
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2002 Animated 3D Carpal Motion, Michael Sandow, Sam Papas, Michael Kerylidis Royal Adelaide Hospital and Wakefield Orthopaedic Clinic Adelaide |
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Using software from True Life Anatomy (www.rubamas.com)
the motion of the carpus can be demonstrated in a clinically applicable
format to aid anatomical understanding, diagnosis and reconstructive
planning. By obtaining 3D CT scans of the normal and abnormal wrist in
various positions of coronal and sagittal deviation, and then creating
motion sequences using a step frame animation technique, the dynamic
relationships between the various carpal bones can be demonstrated,
ligamentous constraints inferred, and pathological and reconstructive
options evaluated. The surgeon can view and manipulate the carpus in an
interactive graphics environment to facilitate preoperative planning and
assist in patient explanation.
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| 2002 Dorsal Percutaneous Internal Fixation of Scaphoid Fractures and Selected Nonunions Via an Arthroscopic Assisted Approach", Joseph F. Slade, III, MD | |||||||||||||||||||||||||||||||||||||
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The dorsal percutaneous technique for repair of scaphoid fractures and selected nonunions with cannulated headless compression screw allows the early return of hand function with a high union rate. A 10-year review of papers (meta-analysis) reporting on percutaneous fixation of "stable" scaphoid fractures using headless compression screws identified 214 acute fractures treated percutaneously that resulted in a 100% healing rate. There were 39 fractures with either fibrous unions or with late presentation treated percutaneously with rigid fixation. All 39 fractures healed without open bone graft. The only complications reported in these papers was the implantation of 4 screws that were too long (complication rate of 1.5%). The key to this procedure is accurate placement of a guide wire in a reduced scaphoid fracture along its central axis. 0.045 inch guide wire which is introduced percutaneously into the proximal pole of the scaphoid and driven from dorsal to volar. 0.062 inch K-wires joysticks are used to reduce the fracture. A hand-held Standard Acutrak cannulated reamer is placed over the guide wire and the scaphoid is reamed to within the distal cortex. The correct screw length is obtained by subtracting 4mm from the actual scaphoid length. Two parallel guidewires are used to obtain scaphoid length. At the conclusion of surgery, a removable splint is applied and a strengthening program is started. Heavy lifting and contact sports are restricted until CT confirms healing by bridging callous and clinically the patients are non-tender. We have treated over 50 scaphoid fractures with 100% union as confirmed with CT scan. These include stable, unstable and displaced scaphoid fractures rigidly repaired using this dorsal percutaneous method without complication. In addition we have treated fibrous unions and scaphoid fractures which have presented with percutaneous rigid fixation alone without bone graft. These have all also healed, but slower than those fractures treated acutely.
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| 2002 UPDATE OF THE SEVERITY, ANATOMICAL, TOPOGRAPHIC, TYPE (S.A.T.T.) CLASSIFICATION AND MANAGEMENT OF OPEN HAND INJURIES, Panayotis N. Soucacos, M.D., FACS, John Kostas, M.D., Anastasios Korompillias, M.D., Marios Vekris, M.D., Alexandros Beris, M.D., Department of Orthopaedic Surgery, University of Ioannina, School of Medicine, Ioannina 451 10, Greece | |||||||||||||||||||||||||||||||||||||
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Open hand injuries are complex injuries which require technical expertise
in both skeletal and soft tissue reconstruction. The initial treatment of
open hand injuries is of great importance, and prognosis for full
functional recovery following open hand injuries is dependent upon
recognition of the presence and extent of damage to the various tissue
components. An updated classification system (S.A.T.T.) for open hand
injuries has been proposed which allows for a more effective management of
these complex injuries by assisting the surgeon in recognizing the extent
of damage to the various tissues. The classification system is based on:
(S) severity of the injury (viability of the involved parts); (A)
anatomical localization (isolated vs extended); (T) topography (volar or
dorsal); (T) the type of injury (sharp vs crush-avulsed). The initial aim
is to save tissues which otherwise can not “wait” for other anatomical
management. Afterwards, the other parameters are taken into account, to
direct the correct management of the injury and ensure good function.
Trauma to the vascular system may produce vascular impairment that may
result in loss of the segment or skin necrosis and is of primary concern
to the hand surgeon. Most nonviable injuries due to the nature of their
vascular impairment, require time-consuming procedures for the restoration
of an adequate blood supply. These must be done under brachial plexus
block with an experienced anesthesiologist. Stable bone fixation is also
a key procedure and is necessary to create a skeletal framework for early
motion and function. In general, sharp lacerations have a better
prognosis compared to crush injuries. They are less demanding in both
primary reconstruction and secondary procedures, such as free flaps,
nerves, tendon or venous grafts. Even though clean cut injuries are less
severe than crush injuries, when they occur in zone II they are demanding
regarding fine microsurgical techniques in suturing tendons and digital
nerves. The bottom line in the management of open hand injuries is to
first ensure that the damaged part is viable, and then do to the necessary
procedures to make it functional. Most patients with open hand injuries
and particularly those with crush injuries require secondary procedures.
These may include reconstructive procedures to restore anatomical elements
when primary reconstruction was contraindicated such as with flexor tendon
rupture in zone II, digital nerves or to treat complications secondary to
the severity of the initial injury, such as tendon adhesions, bone
pseudoarthrosis, or infection.
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| 2002 LARGE SKELETAL DEFECTS OF THE UPPER EXTERMITY: APPLICATION OF FREE VASCULARIZED FIBULAR GRAFTS, Panayotis N. Soucacos, M.D., FACS, Haralampos Zalavras, M.D., Anastasios Korompillias, M.D., Marios Vekris, M.D., Alexandros Beris, M.D., Department of Orthopaedic Surgery, University of Ioannina, School of Medicine, Ioannina 451 10, Greece | |||||||||||||||||||||||||||||||||||||
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Large skeletal defects of the upper extremity constitute a serious
clinical problem related to the functional ability and viability of the
affected limb. Free microvascular bone transfers are used to cover large
bony defects from a variety of factors which cannot be bridged by
conventional techniques. In contrast to nonvascularized bone grafts, the
blood supply is preserved with vascularized grafts by the anastomosis the
feeding artery of the graft to a host artery. Thus, the graft does not
undergo necrosis and revascularization by the surrounding vasculature.
The fibula is one of the most frequently used donor bones for free
vascularized bone transfers. Because of its size and configuration it
lends well to reconstruction of long bones. The feeding peroneal vessels
to the fibular graft are not cut until the recipient site is ready. Once
ready, the graft is then transferred and the arteries and veins are
anastomosed using standard microsurgical technique. Angiography and
scanning are done 3 to 5 days postoperatively in order to check patency of
the vessels and viability of the free fibular bone graft. The use of
vascularized fibular grafts is particularly useful in treating large
skeletal defects of the upper extremity. Thirty-two patients (22M, 10F)
with large skeletal defects were treated with free vascularized fibular
grafts in the lower extremity and 11 patients (8M, 2F) in the upper
extremity. The defects involved the forearm in 8 patients (10 bones:
radius 7 patients, and ulnar 3 patients) and the humerus in 3 patients.
The average length of the defect was 10 cm (6-18 cm). The etiology of the
defects included trauma (8), malignant neoplasms (2), and congenital
pseudarthrosis (1). The fibula was transferred as an osseous flap in 10
cases and as a composite flap (soleus) in 1 case. At a mean follow-up of
4 years (range 1-10 yrs), 88% of the patients showed excellent graft heal,
with union of 14 of the 16 junctions sites at 3 months (2.4-4 mo).
Nonunion was observed at 2 junction sites which was attributed to the
severity of the injury, unstable fixation and refusal for further
treatment. No intraoperative complications, stress fractures and donor
site morbidity was observed. There was 1 infection 4 years postop. The
functional outcome was excellent in 9 patients (80%), good in 1 patient
(10%) (despite nonunion of the junction site), and poor in 1 patient
(10%). The results indicate that large skeletal defects in the upper
extremity can be reconstructed with the free vascularized fibular grafts
with satisfactory results, even in the presence of poor vascularity of the
surrounding soft tissue envelope or infection, which would compromise
alternative methods. The success of the free vascularized fibula is
related to its unique vascularity, morphology and composition of the
graft. The application of the free vascularized fibular graft is
technically demanding, requiring meticulous microsurgical technique.
None-the-less it can provide a useful solution to the difficult problem of
large skeletal defects.
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2002 CONGENITAL LONGITUDINAL DEFICIENCY OF THE TIBIA, David A. Spiegel, M.D., Randall T. Loder, M.D., and Robin C. Crandall, M.D., Shriner’s Hospital for Children/Twin Cities, Minneapolis, MN |
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This retrospective clinical and radiographic review involves 15 patients
(19 limbs). Clinical findings include a rigid equinovarus foot, knee
instability and flexion contracture, and limb length inequality.
Coexisting musculoskeletal problems were identified in 8/15 patients,
including 5 with congenital hand deformities. Patients with complete
absence were treated by knee disarticulation, and those with a distal
diastasis underwent Syme amputation. Those with an intact proximal tibia
underwent foot ablation and tibio-fibular synostosis, +/- proximal fibular
epiphysiodesis or resection of the proximal fibula. Fibular prominence
(+/- limb varus) may interfere with prosthetic fitting. Either removal or
epiphysiodesis of the proximal fibula, while maintaining knee alignment in
neutral to slight valgus, may prevent this problem.
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| 2002 THE EARLY GRACILIS FLAP FOR FUNCTIONAL RECONSTRUCTION OF THE UPPER EXTREMITY, Milan Stevanovic, LAC + USC Medical Center, University of Southern California, Los Angeles | |||||||||||||||||||||||||||||||||||||
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Purpose: Brachial plexus and severe upper extremity injuries have a devastating effect on the patient’s function. Reconstruction of the upper extremity remains a challenging problem and microneurovascular muscle transfer has been utilized to restore upper extremity function. Several muscles have been used including the rectus femoris and the latissimus dorsi. We present our experience with transfer of the free gracilis muscle flap. Material and methods: Reconstruction of the upper extremity with the gracilis free muscle flap was undertaken in 12 patients. Loss of function was secondary to brachial plexus injury in 6 patients, traumatic muscle loss in 5 patients, and tumor excision in one patient. The free gracilis flap was used for restoration of elbow flexion in 6 patients, finger flexion in 4, and finger extension in 2 patients. Follow-up ranged from 1 to 15 years (mean 5 years). Muscle power grade 4 or greater was considered excellent, grade 3 to 4 was considered good, and less than 3 poor. Results: All flaps survived (100%). The free gracilis flap resulted in good or excellent finger flexion or extension in all 6 patients. Five of 6 patients had an excellent and one had a good outcome. Elbow flexion was achieved in 5 cases with grade 4 power in 2 cases and grade 3 in 3 cases. No function was restored in one case. Overall functional outcome was considered excellent in 5 of 12 cases (42%), good in 6 of 12 cases (50%), and poor in one case (8%). Conclusions: Microneurovascular transfer of the gracilis is useful for reconstruction of the upper extremity, particularly for restoration of finger flexion and extension. It is a challenging problem to restore thumb flexion separately with a single muscle transfer. Excellent finger motion can be accomplished and good restoration of elbow flexion can be achieved. Optimal muscle resting length, and strong and appropriately located origin and insertion are factors of paramount importance for an excellent functional outcome.
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| 2002 The Morbidity and Mortality of Simultaneous Bilateral, Staged Bilateral, and Unilateral Total Knee Arthroplasty, Cary Tanner MD, Vincent Pellegrini, MD and Marlene Smith, RN | |||||||||||||||||||||||||||||||||||||
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Factors associated with the morbidity and mortality of total knee arthroplasty (TKA) were studied. Outcome data was obtained for 479 consecutive patients who underwent 618 procedures from 1998 to 2001. 114 patients underwent simultaneous bilateral TKA, 25 patients underwent staged bilateral TKA, and 340 patients underwent unilateral TKA. All of the significant differences between the groups occurred within the first few post-operative weeks. No significant differences between any of the groups were found in those patients with fewer than three medical comorbidities. In patients with three or more comorbidities, those undergoing simultaneous bilateral TKA were more likely to sustain complications with potential long term consequences compared to those undergoing two unilateral total knee replacements. Age over 70, independent of comorbidites, was associated with an increased risk of severe complication and death only in the bilateral TKA group. Body mass index, the surgeon’s experience with TKA, the sex of the patient, the type of anesthesia, and the type of comorbidity, were not found to influence the outcomes between groups. When the costs associated with complications are accounted for, the potential cost benefit of simultaneous bilateral TKA may be less than previously estimated.
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| 2002 Thirty-Year Follow-up of Isolated Anterior Cruciate Ligament Injuries: Long-term Results of Treatment with Primary Repair, Dean C. Taylor, MD, LTC, MC, USA, Matthew Posner, BS, CPT, FA, USA, Walton W. Curl, MD, COL, USAR, John A. Feagin, MD, COL (ret), USA, Keller Army Community Hospital, Division of Orthopaedic Surgery, West Point, New York 10996, 914-938-4821, FAX: 914-938-6806 | |||||||||||||||||||||||||||||||||||||
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Over 25 years ago Feagin and Curl reported on the diagnosis and treatment of isolated ACL tears. The purpose of this study is to provide long-term follow-up of this group of patients. METHODS: This is a retrospective, observational study of arthrotomies performed between 1964 and 1970 for isolated ACL tears. The original 64 patients studied were identified and thirty-four patients were contacted for follow-up. Two patients are deceased. The average age at the time of the ACL repair was 20 years, and the average time to follow-up from the index procedure was 34 years. Outcome measures included subsequent operations, Lysholm scores, KOOS scores, IKDC scores and SANE ratings. RESULTS: Twenty patients (59%) had subsequent operations to the same knee, and 8 of 34 had operations to address persistent instability of the knee. The average Lysholm score was 70.1, average SANE score 68.9, and average KOOS score 68.8. IKDC subjective ratings were 6 normal, 12 near normal, 7 abnormal and 9 severely abnormal. IKDC symptoms ratings were 8 normal, 9 near normal, 10 abnormal and 7 severely abnormal. The average Tegner Activity Score was 3.8. DISCUSSION: In this group of patients, surgical treatment of isolated ACL tears, consisting of primary repair in most cases, resulted in good functional results at two years; however, the results deteriorated by 5 years. The data, with more than 30-year follow-up, demonstrate that even with decreased activity demands, the majority of these patients continue to have significant knee symptoms; however, a significant number of patients have had good long-term results.
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| 2002 Use of the Radial Forearm Free Flap for coverage of Postoperative Lateral Heel Wounds status post ORIF of the Calcaneus, E. Bruce Toby, M.D.; Greg A. Horton, M.D.; Jody T. Jachna, M.D., Section of Orthopedic Surgery University of Kansas Medical Center, Kansas City, Kansas | |||||||||||||||||||||||||||||||||||||
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Introduction: The purpose of this study is to describe a unique application of the radial forearm free flap for coverage of lateral heel wounds frequently seen complicating open reduction and internal fixation (ORIF) of the calcaneus. Methods: Seven lateral heel wounds status-post ORIF of calcaneal fractures were covered with radial forearm free flaps using a technique involving passage of the pedicle of the laterally placed flap anterior to the achilles tendon to the posterior tibial artery for end to side anastomosis. Results: All flaps survived with good functional and cosmetic results. Conclusions: Flap application using this technique provides quick, reliable coverage of heel wounds with several advantages.
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| 2002 Anterior Elbow Release for Flexion and Extension Contractures, J.M. Aldridge, III, T.A. Atkins, E. Gunneson, J.R. Urbaniak | |||||||||||||||||||||||||||||||||||||
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Background:
There are many causes of diminished
elbow range of motion; trauma, muscle imbalance, burns, osteoarthritis,
inflammatory arthritis, hemophilia, and sepsis. When nonoperative
techniques (supervised physical therapy and dynamic splinting) fail to
increase elbow arc of motion, surgical intervention may be necessary. The
purpose of this study was to report the outcome of surgical correction of
elbow flexion and extension contractures through an anterior release. In
addition we evaluated the efficacy of continuous passive motion in the
immediate post-operative period. Methods: We retrospectively reviewed the outcomes of 106 patients who had anterior elbow release for flexion and extension contractures due to several different causes from July 1975 through June 2001. Post-operatively, 62 of the 87 patients were treated with continuous passive motion, while the other 25 were treated with splinting in extension. The average duration of follow-up was 23 months (range 6-120months). The average patient age was 34 years (range 13-66years). We evaluated the outcomes using pre and postoperative radiographs, and pre and post-operative active elbow range of motion. This measurement was recorded by the same surgeon (JRU) using the same large goniometer (47cm.) Results: The mean preoperative extension was 52 degrees, which improved to 21 degrees post-operatively. Mean flexion increased from 111 degrees to 117 degrees. The mean total arc of motion for the group increased 38 degrees (from 59 to 97 degrees). The total arc of motion for the patients treated with CPM increased 41 degrees while the total arc of motion for those treated with extension splinting increased 27 degrees. There were 15 complications in 14 patients (16%). The majority of these were related to temporary traction neuropathies (ulnar nerve 5, radial nerve 3, superficial radial nerve 2, posterior interosseous nerve 1, lateral antebrachial cutaneous nerve 1). There were two infections (one superficial, one deep) both of which resolved with oral antibiotics, irrigation, and debridement. Conclusion: We concluded that release of pathologically thickened anterior elbow capsule through an anterior incision for correction of diminished elbow range of motion is a safe and effective technique. Furthermore, the utilization of continuous passive motion during the postoperative period increases total arc of motion when compared to splinting alone.
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| 2002 Piedmont Society Survey: Acute Joint Sepsis, David C. Urquia, M.D., Mechanicsville, Virginia | |||||||||||||||||||||||||||||||||||||
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Survey forms were mailed to all active physician members of the Duke Orthopaedic Piedmont Society, recording their collective experience with the diagnosis and treatment of acute bacterial (non-T.B.) sepsis in selected major joints in adults and children. Experience with arthroscopy reviewed. Experience with percutaneous pigtail catheters reviewed. A total of 37 surgeons responded. The survey contained General Practice Data, and Clinical Examples. The Data was as follows:
1. Referral to Radiology for
diagnostic procedures on suspected joint infections: Never – 35%
Rarely - 30% 2. Referral to Radiology for therapeutic procedures on suspected joint infections : Yes - 22% No - 78%. 3. Preferred treatment for: Knee (adult): Arthroscopic I&D (94% of respondents) Hip (adult): Open Arthrotomy (84%) Hip (peds): Open Arthrotomy (94%) Ankle (adult): Arthroscopic (68%), Arthrotomy (26%) Shoulder (adult): Arthroscopic (58%), Arthrotomy (39%) GC: Antibiotics alone (51%), Open arthrotomy (49%) General Observations and Conclusions: 1. Referral to Radiology for diagnostic and/or therapeutic procedures was not the norm for this group of surgeons. 2. Arthroscopic drainage procedures widespread for multiple joints, except in adult and pediatric hip cases. 3. Very limited experience with percutaneous catheters in this group, and not recommended for pediatric hip patients. 4. Multiple aspiration technique for treatment not recommended. 5. Principles of early diagnosis and aggressive surgical treatment supported.
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| 2002 Bone compaction: A technique designed to improve primary stability of a hip stem, Thomas Parker Vail, Jay West, Richard Glisson, Farshid Guilak, Duke University Medical Center, Division of Orthopaedic Surgery, Durham, North Carolina 27710 | |||||||||||||||||||||||||||||||||||||
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A critical factor in the performance of the stem is the technique of
implantation. There are three basic ways to prepare bone for an implant:
broaching, milling, and compacting. The extent to which the broach
compacts or cuts bone depends upon the design of the teeth of the broach.
The technique of bone compaction creates a space in the medullary cavity
by radially displacing bone. A series of experiments were performed with
the objective of determining how the method of bone preparation affects
bone-implant contact and bone implant attachment strength using a
cementless implant. In Part 1, a conical implant with a 3 degree taper
was implanted into a cadaveric femur using one of three (n=5) techniques
of bone preparation. The proximal femur was then sectioned with the
implant in place. Sections were scanned into NIH V1.54, to quantify the
amount of implant-bone contact. The techniques were compared using a
one-way ANOVA and Tukey’s studentized range test. In part 2, a transverse
cylindrical cavity was created above the lateral condyle of a rabbit using
one of three techniques (n=12). A hydroxyapatite-coated titanium implant
was inserted. Twelve weeks later, the peak pull-out forces were
determined and subjected to ANOVA and Neuman-Keuls tests. The cadaveric
study demonstrated a significant difference in bone contact between bone
compaction and broaching (p=0.03). Bone compaction resulted in 54.25%
bone-implant contact, reaming 42.16%, and broaching 37.29%. The rabbit
study revealed a trend in pullout strength between compaction (547.0 N),
broaching (498.1 N), and milling (444.7 N), but no statistical
difference. Thus, bone compaction increased bone-implant contact by
trabecular displacement in cadaveric femora, and did not compromise
implant pullout strength in an animal model of bone ongrowth.
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| 2002 The Effects of Varus Tibial Alignment on Proximal Tibial Surface Strain in Total Knee Arthroplasty: The Posteromedial Hot Spot, Gregory V. Green, MD1, Keith R. Berend, MD1, Michael E. Berend, MD2, Richard R. Glisson, BS1, and Thomas P. Vail, MD1, 1. Duke University Medical Center, Division of Orthopaedic Surgery, Durham, North Carolina, 2. Center for Hip and Knee Surgery, Mooresville, Indiana | |||||||||||||||||||||||||||||||||||||
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Varus tibial alignment in total knee arthroplasty (TKA) is associated with
loosening and failure. This study aims to determine the effect of varus
tibial alignment on proximal tibial strain in a human cadaver model. The
proximal one-third of seven paired fresh frozen cadaveric tibiae had
photo-elastic coating applied. The right tibiae were cut in neutral
alignment, and the left cut in five degrees of varus. The tibial
components were cemented and loaded 3x body weight with varying medial to
lateral load. Surface microstrain was calculated from the birefringent
pattern of the photoelastic coating using previously validated
techniques. There was statistically increased strain concentration,
termed a “hot spot,” in the posteromedial quadrant of the proximal tibia
in varus-cut bones (p<0.05). In neutral alignment, the strain was nearly
equal on the medial and lateral sides of the tibia. The increased strain
observed in the medial proximal tibiae with varus alignment helps
elucidate the mechanism of increased failure of a total knee arthroplasty
inserted in varus alignment. When cut in varus, the tibia demonstrated
consistently increased medial strain, even with lateralization of the
axial load. Neutral alignment may have a protective effect by uniformly
dispersing proximal tibial strain.
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2002 STRUT/CAGE GRAFTING AFTER CERVICAL CORPECTOMY, Kenneth E. Wood, MD, Sam Chewning, MD, Jennifer Gannon, PA-C, Piedmont Healthcare, Statesville, North Carolina |
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This study is a preliminary report of a new technique for interbody fusion and fixation following corpectomy of the cervical spine. It is a retrospective review of eleven (11) cases of severe cervical disk disease. The objectives are to show the efficacy and safety of the use of a titanium mesh cage filled with local autograft bone taken from the corpectomy as a strut to bridge the appropriate end-plates. The strut grafting is followed by anterior cervical plate and screws. Studies have shown that the use of a fibular or iliac strut graft accompanied by anterior plate and screw fixation is an appropriate fixation technique following cervical corpectomy. In addition it has been recognized there are potential donor site problems with the use of very large iliac crest bone grafts, and there are some contouring challenges with the use of large structural allografts. In favor of titanium cage use, Clemme and Polly as well as Brantigan and Lowery have shown that osteosynthesis and bone remodeling occur within titanium cages. Eleven patients with an average age of 54.5 years underwent corpectomy and strut/cage grafting. The average follow up is 8.1 months. Diagnoses include multi-level spondylosis, myelopathy, subluxation and stenosis. It is stressed that the use of strut/cage grafting is not recommended for the routine disk herniation or single-level spondylosis. Indications include severe multi-level cervical disk disease, cervical deformity, cervicovertebral tumors and cervical myelopathy requiring corpectomy. Several illustrative cases are shown with pre- and post-op studies. Results include excellent – eight (8); improved – three (3); poor – zero (0). Complications: Arrhythmias – One (1). Infections – Zero (0). Hematoma – Zero (0). Deaths – Zero (0). In conclusion, titanium strut/cage grafting after cervical corpectomy accompanied by anterior plate and screws in this preliminary study is shown to be a safe procedure which is successful in a small group of patients with early follow up of 8.1 months. This procedure reflects a safe way to use allograft and avoid bone grafting and contouring problems associated with very large iliac crest grafts and allografts. This procedure is not recommended for routine disk herniations and single-level spondylosis.
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