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Journal of Bone and Joint Surgery. American Volume

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https://read.qxmd.com/read/30730491/is-varus-the-new-alignment-goal-commentary-on-an-article-by-j-a-kennedy-mbbs-mrcs-et-al-functional-outcome-and-revision-rate-are-independent-of-limb-alignment-following-oxford-medial-unicompartmental-knee-replacement
#1
https://read.qxmd.com/read/30730490/achieving-microsurgical-competency-in-orthopaedic-residents-utilizing-a-self-directed-microvascular-training-curriculum
#2
Gaurav Luther, Philip Blazar, George Dyer
BACKGROUND: Education in microvascular surgery is limited by variable experience, a difficult learning curve, and potentially catastrophic complications caused by failed anastomoses. Furthermore, utilization of live-animal training models can be difficult because of lack of access and high maintenance costs. The purpose of this study was to determine the effectiveness and cost of a self-directed microvascular training curriculum utilizing synthetic microvessels and nonliving models in an orthopaedic residency program...
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730489/what-s-important-burnout-and-well-being-confessions-of-a-slow-learner
#3
David A Rothenberger
No abstract text is available yet for this article.
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730488/analytics-in-sports-medicine-implications-and-responsibilities-that-accompany-the-era-of-big-data
#4
Robby S Sikka, Michael Baer, Avais Raja, Michael Stuart, Marc Tompkins
No abstract text is available yet for this article.
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730487/functional-outcome-and-revision-rate-are-independent-of-limb-alignment-following-oxford-medial-unicompartmental-knee-replacement
#5
J A Kennedy, J Molloy, C Jenkins, S J Mellon, C A F Dodd, D W Murray
BACKGROUND: There is controversy about optimal limb alignment following knee replacement. An aim of using Oxford medial unicompartmental knee replacement (UKR) implants is to accurately restore normal ligament tension in the knee, thereby restoring normal kinematics. This return to normal tension typically results in a return to prearthritic alignment, which is frequently varus. The aim of this study was to investigate the relationship between postoperative limb alignment and postoperative patient-reported outcome and implant revision rate...
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730486/long-term-survival-of-retained-cementless-hip-stems-at-an-average-of-13-years-after-isolated-cup-revision
#6
Moritz M Innmann, David S Peitgen, Christian Merle, Thomas Bruckner, Tobias Gotterbarm, Babak Moradi, Marcus R Streit
BACKGROUND: Cementless stems demonstrate excellent long-term survival, but little is known about the long-term survival rate of the stem after isolated cup revision. The aim of the present retrospective cohort study was to determine the long-term survival rate of cementless stems retained after prior cup revision. METHODS: We reviewed the clinical and radiographic results of 119 total hip arthroplasties (THAs) utilizing a cementless, grit-blasted, tapered titanium femoral stem that were performed in 113 patients between January 1985 and December 1989...
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730485/lymphocyte-transformation-testing-ltt-in-cases-of-pain-following-total-knee-arthroplasty-little-relationship-to-histopathologic-findings-and-revision-outcomes
#7
Steven Yang, Matthew Dipane, Conrad H Lu, Thomas P Schmalzried, Edward J McPherson
BACKGROUND: The utilization of lymphocyte transformation testing (LTT) has increased for diagnosing metal sensitivity associated with total knee arthroplasty (TKA), but its validity for the diagnosis of TKA failure due to an immune reaction has not been established. In this study, we sought to characterize the relationship of a positive LTT result to histopathologic findings and clinical and functional outcomes. METHODS: This was a retrospective study of 27 well-fixed, aseptic, primary TKA cases in which the patient had persistent pain and/or stiffness and underwent revision due to a suspected metal allergy to nickel, as determined on the basis of positive LTT...
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730484/computer-assisted-navigation-is-associated-with-reductions-in-the-rates-of-dislocation-and-acetabular-component-revision-following-primary-total-hip-arthroplasty
#8
Daniel D Bohl, Michael T Nolte, Kevin Ong, Edmund Lau, Tyler E Calkins, Craig J Della Valle
BACKGROUND: Prior work suggests that computer-assisted navigation improves acetabular component position during primary total hip arthroplasty (THA). However, it is not known whether this translates to improvements in clinical outcomes. The purpose of this study was to test for associations between navigation use and the risk of dislocation, aseptic revision of the acetabular component, aseptic revision of the femoral component, aseptic revision of either component, and acute periprosthetic joint infection (PJI)...
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730483/two-stage-exchange-protocol-for-periprosthetic-joint-infection-following-total-knee-arthroplasty-in-245-knees-without-prior-treatment-for-infection
#9
Stephen M Petis, Kevin I Perry, Tad M Mabry, Arlen D Hanssen, Daniel J Berry, Matthew P Abdel
BACKGROUND: For patients undergoing 2-stage exchange for the treatment of periprosthetic joint infection (PJI) following total knee arthroplasty, the long-term risk of reinfection and mechanical failure and long-term clinical outcomes are not well known. The purpose of our study was to determine the long-term clinical results of 2-stage exchange for PJI following total knee arthroplasty. METHODS: We identified 245 knees that had undergone total knee arthroplasty and were subsequently treated with 2-stage exchange due to infection during the period of 1991 to 2006; the cohort had no prior treatment for PJI...
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730482/reduced-myogenic-and-increased-adipogenic-differentiation-capacity-of-rotator-cuff-muscle-stem-cells
#10
Manuel F Schubert, Andrew C Noah, Asheesh Bedi, Jonathan P Gumucio, Christopher L Mendias
BACKGROUND: Fat accumulation commonly occurs in chronically torn rotator cuff muscles, and increased fat within the rotator cuff is correlated with poor clinical outcomes. The extent of lipid deposition is particularly pronounced in injured rotator cuff muscles compared with other commonly injured muscles such as the gastrocnemius. Satellite cells, which are a tissue-resident muscle stem-cell population, can differentiate into fat cells. We hypothesized that satellite cells from the rotator cuff have greater intrinsic adipogenic differentiation potential than do gastrocnemius satellite cells, and this difference is due to variations in epigenetic imprinting between the cells...
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730481/pain-coping-skills-training-for-patients-who-catastrophize-about-pain-prior-to-knee-arthroplasty-a-multisite-randomized-clinical-trial
#11
Daniel L Riddle, Francis J Keefe, Dennis C Ang, James Slover, Mark P Jensen, Matthew J Bair, Kurt Kroenke, Robert A Perera, Shelby D Reed, Daphne McKee, Levent Dumenci
BACKGROUND: Pain catastrophizing has been identified as a prognostic indicator of poor outcome following knee arthroplasty. Interventions to address pain catastrophizing, to our knowledge, have not been tested in patients undergoing knee arthroplasty. The purpose of this study was to determine whether pain coping skills training in persons with moderate to high pain catastrophizing undergoing knee arthroplasty improves outcomes 12 months postoperatively compared with usual care or arthritis education...
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730480/predicting-risk-of-contralateral-slip-in-unilateral-slipped-capital-femoral-epiphysis-posterior-epiphyseal-tilt-increases-and-superior-epiphyseal-extension-reduces-risk
#12
Daniel A Maranho, Mariana G Ferrer, Young-Jo Kim, Patricia E Miller, Eduardo N Novais
BACKGROUND: Femoral morphology may influence the etiology of slipped capital femoral epiphysis (SCFE). We investigated whether radiographic parameters of femoral head-neck morphology are associated with a subsequent contralateral slip in patients presenting with unilateral SCFE. METHODS: We evaluated 318 patients treated for unilateral SCFE between 2000 and 2017. There were 145 males (46%), and the mean age in the series was 12.4 ± 1.7 years. The patients were followed for a minimum of 18 months or until the development of a contralateral slip (70 patients, 22%)...
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30730479/the-effect-of-patient-characteristics-on-1-to-2-year-and-minimum-5-year-outcomes-after-total-ankle-arthroplasty
#13
Daniel J Cunningham, James K DeOrio, James A Nunley, Mark E Easley, Samuel B Adams
BACKGROUND: Total ankle arthroplasty has shown durable improvements in patient-reported outcomes. However, the impact of common comorbidities and patient factors has not been fully characterized. The purpose of this study was to identify patient comorbidities and characteristics that impact outcomes after total ankle arthroplasty. METHODS: Patients who underwent a total ankle arthroplasty between January 2007 and December 2016 were enrolled into a prospective study at a single academic center...
February 6, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30653054/erratum-clinical-and-mri-outcomes-of-fresh-osteochondral-allograft-transplantation-after-failed-cartilage-repair-surgery-in-the-knee
#14
(no author information available yet)
No abstract text is available yet for this article.
January 16, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30653053/intra-articular-injections-should-be-avoided-in-the-3-months-prior-to-total-knee-arthroplasty-commentary-on-an-article-by-shawn-s-richardson-md-et-al-comparison-of-infection-risk-with-corticosteroid-or-hyaluronic-acid-injection-prior-to-total-knee-arthroplasty
#15
https://read.qxmd.com/read/30653052/cognitive-skills-assessment-for-the-aging-orthopaedic-surgeon-aoa-critical-issues
#16
Gerald B Hickson, Terrance Peabody, William J Hopkinson, Charles E Reiter
Physician leaders are increasingly confronted with the challenge of evaluating the performance of surgical colleagues during the last phase of their careers. Identification of physicians with declining cognitive and clinical skills must be balanced against awareness of laws protecting colleagues from discrimination. Responding successfully to this challenge requires appropriate policies, reliable data, standardized evaluation tools, consistent documentation, and the development of compassionate and effective solutions that avoid discriminatory practices...
January 16, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30653051/assessing-the-effectiveness-of-evidence-based-medicine-in-practice-a-case-study-of-first-time-anterior-shoulder-dislocations
#17
Carolyn A Hutyra, Benjamin Streufert, Cary S Politzer, Perez Agaba, Elka Rubin, Lori A Orlando, Dean C Taylor, Richard C Mather
BACKGROUND: The dissemination of evidence-based information into medical practice is essential to provide patients with optimal care and realize society's substantial investments in medical research. Effective information delivery and treatment utilization may lead to improvements in patient outcome, reductions in cost, and an overall lower burden on the health-care system. This study examines the dissemination of medical evidence following a first-time anterior shoulder dislocation (FTASD) and assesses the impact of potential dissemination strategies...
January 16, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30653050/nomenclature-inconsistency-and-selective-outcome-reporting-hinder-understanding-of-stem-cell-therapy-for-the-knee
#18
Ian A Jones, Xiao Chen, Denis Evseenko, C Thomas Vangsness
BACKGROUND: The prospect of treating knee cartilage injury/pathology with mesenchymal stem cells (MSCs) has garnered considerable attention in recent years, but study heterogeneity and a lack of randomized controlled trials (RCTs) preclude quantitative analysis. The purpose of this review was to provide clinicians with an overview of RCTs that addresses 2 key areas that have been largely overlooked: nomenclature inconsistency and selective outcome reporting. METHODS: RCTs that purported to use stem cells or MSCs to treat knee cartilage were identified with use of PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses)...
January 16, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30653049/fluorescence-in-situ-hybridization-fish-for-the-diagnosis-of-periprosthetic-joint-infection-in-formalin-fixed-paraffin-embedded-surgical-tissues
#19
Torsten Lippmann, Peter Braubach, Max Ettinger, Mark Kuehnel, Florian Laenger, Danny Jonigk
BACKGROUND: As the number of arthroplasties performed increases, periprosthetic joint infection (PJI) represents a common and challenging problem. The Musculoskeletal Infection Society (MSIS) recommends diagnosing PJI according to its guidelines. The aim of the current study was to assess whether fluorescence in situ hybridization (FISH) analysis of formalin-fixed paraffin-embedded periprosthetic membranes can successfully improve the diagnosis of infection in patients with orthopaedic implants...
January 16, 2019: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/30653048/the-gluteus-medius-tendon-and-its-insertion-sites-an-anatomical-study-with-possible-implications-for-gluteus-medius-tears
#20
Masahiro Tsutsumi, Akimoto Nimura, Keiichi Akita
BACKGROUND: Gluteus medius tears are a common hip disorder. Despite this, the etiology of these tears and the anatomical background of the gluteus medius tendon remain unclear. This study aimed to clarify the characteristics of the gluteus medius tendon. We hypothesized that the tendinous portions of the gluteus medius have a nonuniform structure contributing to the tear etiology. METHODS: Twenty-five hips from 15 Japanese cadavers were analyzed. Twenty-one of the hips were analyzed macroscopically, and the other 4 were analyzed histologically...
January 16, 2019: Journal of Bone and Joint Surgery. American Volume
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