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Total shoulder arthroplasty

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https://www.readbyqxmd.com/read/28545494/no-correlation-between-radiolucency-and-biomechanical-stability-of-keeled-and-pegged-glenoid-components
#1
Andreas Voss, Knut Beitzel, Elifho Obopilwe, Stefan Buchmann, John Apostolakos, Jessica Di Venere, Michael Nowak, Mark P Cote, Anthony A Romeo, Augustus D Mazzocca
BACKGROUND: The purpose of this study was to examine biomechanical properties and the degree of radiolucency of two cemented basic glenoid designs for total shoulder arthroplasty. Our hypothesis was that a component with increased micro-motion in the laboratory at time zero would also exhibit a greater amount of radiolucency in patients at a minimum of 2 years post total shoulder arthroplasty. METHODS: Thirty cadaveric shoulders were divided into 2 groups (keel vs...
May 25, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28540605/characteristics-of-rheumatoid-arthritis-patients-undergoing-reverse-shoulder-arthroplasty
#2
Julio J Jauregui, J Paul Hovis, S Ashfaq Hasan
The risks and complication profile of reverse total shoulder arthroplasty (RSA) in rheumatoid arthritis (RA) patients has yet to be clearly defined as most studies have small cohorts. Using a large inpatient database, the purpose on our study was to determine the overall demographics, hospitalization characteristics, and early complication rates in rheumatoid patients and compared these to rotator-cuff arthropathy patients without RA undergoing RSA. Utilizing United States Nationwide Inpatient Sample from 2010 to 2013, we evaluated a total of 919 RA RSA and compared them to 8097 patients without RA undergoing RSA...
May 24, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28528016/the-influence-of-humeral-neck-shaft-angle-and-glenoid-lateralization-on-range-of-motion-in-reverse-shoulder-arthroplasty
#3
Birgit S Werner, Jean Chaoui, Gilles Walch
BACKGROUND: Recent developments in reverse shoulder arthroplasty (RSA) have focused on changes in several design-related parameters, including humeral component design, to allow for easier convertibility. Alterations in humeral inclination and offset on shoulder kinematics may have a relevant influence on postoperative outcome. This study used a virtual computer simulation to evaluate the influence of humeral neck shaft angle and glenoid lateralization on range of motion in onlay design RSA...
May 17, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28526423/pseudoparalysis-a-systematic-review-of-term-definitions-treatment-approaches-and-outcomes-of-management-techniques
#4
REVIEW
John M Tokish, Thomas C Alexander, Michael J Kissenberth, Richard J Hawkins
BACKGROUND: Pseudoparalysis remains one of the most challenging conditions in shoulder surgery. Long thought of as an unsolvable problem, recent advances in surgical techniques offer potential return of overhead motion in the setting of massive irreparable rotator cuff tears. This article summarizes the available literature including existing definitions and the results of different treatment approaches regarding range of motion, outcome scores, and reversal. METHODS: In accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a systematic review of the MEDLINE database, Cochrane database, Physiotherapy Evidence Database, and Google Scholar database was performed for studies that defined a preoperative shoulder group as having pseudoparalysis...
June 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28526023/high-incidence-of-periprosthetic-joint-infection-with-propionibacterium-acnes-after-the-use-of-a-stemless-shoulder-prosthesis-with-metaphyseal-screw-fixation-a-retrospective-cohort-study-of-241-patients-propionibacter-infections-after-eclipse-tsa
#5
Lisa Johansson, Nils P Hailer, Hans Rahme
BACKGROUND: A stemless shoulder prosthesis with humeral metaphyseal screw fixation was introduced in order to save bone-stock and to facilitate reconstruction of biomechanics (Eclipse®). The aim of this study was to analyze whether the risk of infection is different with this implant compared to conventional shoulder prosthesis. METHODS: Two hundred and forty-one patients (54.8% females) were operated with a shoulder arthroplasty and followed for median 2.0 (0...
May 19, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28507969/core-decompression-with-synthetic-grafting-as-a-joint-preservation-strategy-in-humeral-avascular-necrosis-due-to-sickle-cell-anemia-a-case-report
#6
Andrew M Steffensmeier, Karen Kirkham, John M Wiemann
INTRODUCTION: Avascular necrosis (AVN) of the femoral or humeral heads in patients with sickle cell anemia is a common and painful condition. There is currently no gold standard treatment protocol for this condition. Typically, the pain is managed with narcotics and activity restriction until there has been collapse of the subchondral bone with a degree of arthrosis sufficient to warrant total joint arthroplasty. This method entails prolonged pain for the patient and decreases the ability to function occupationally and recreationally...
November 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28504808/outcome-of-reverse-shoulder-arthroplasty-for-patients-with-parkinson-s-disease-a-matched-cohort-study
#7
Michael C Cusick, Randall J Otto, Rachel E Clark, Mark A Frankle
Parkinson's disease (PD) is a progressive neurologic disorder that affects the musculoskeletal system. Currently, the use of reverse shoulder arthroplasty (RSA) for patients with PD has not been adequately studied. The authors sought to determine if RSA provided similar functional outcomes for patients with PD compared with a matched cohort of patients without PD. Between 2004 and 2011, 10 patients with PD (4 men, 6 women) underwent RSA. Patients with PD were matched to patients without PD at a 1:4 ratio based on age (average, 76 years; range, 63-85 years), sex (16 men, 24 women), preoperative diagnosis, and length of follow-up (average, 43 months; range, 24-128 months)...
May 15, 2017: Orthopedics
https://www.readbyqxmd.com/read/28497103/reverse-total-shoulder-arthroplasty-for-the-treatment-of-synovial-chondromatosis-a-case-report-and-review-of-the-literature
#8
Alexander Kreines, Sean McMillan, Elizabeth Ford, Abigail Dingle
Synovial chondromatosis affecting the glenohumeral joint is rare. Treatment primarily consists of arthroscopic loose body removal and synovectomy. Shoulder arthroplasty has been mentioned in the literature as a treatment option for patients with coexisting arthritis, although the results have been underreported. The case of an 84-year-old man with long standing synovial chondromatosis of the shoulder resulting in severe degenerative disease is presented. The patient was treated with a reverse total shoulder arthroplasty, loose body removal, and a complete synovectomy...
March 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28483434/posterior-glenoid-bone-grafting-in-total-shoulder-arthroplasty-for-osteoarthritis-with-severe-posterior-glenoid-wear
#9
Gregory P Nicholson, Gregory L Cvetanovich, Allison J Rao, Patrick O'Donnell
BACKGROUND: Total shoulder arthroplasty (TSA) in cases with posterior wear can be addressed by eccentric reaming of the anterior glenoid or by augmenting the posterior glenoid with bone grafting or augmented glenoid implants. We report the results of TSA with posterior glenoid bone grafting (PGBG) with humeral head autograft in patients with shoulder osteoarthritis and severe posterior glenoid wear. METHODS: A retrospective review of cases from 2004 to 2014 revealed 34 patients...
May 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28483432/reverse-shoulder-arthroplasty-in-patients-with-os-acromiale
#10
William R Aibinder, Bradley S Schoch, Robert H Cofield, John W Sperling, Joaquin Sánchez-Sotelo
BACKGROUND: Os acromiale has been reported in up to 15% of the general population. Reverse total shoulder arthroplasty (RTSA) increases deltoid tension, which could potentially lead to excessive stress on a pre-existent os acromiale. The purpose of this study was to determine the outcome and complications of primary RTSA in patients with radiographic evidence of an os acromiale. METHODS: Between 2005 and 2013, 25 shoulders underwent primary RTSA with an associated os acromiale, which was classified preacromion (3), mesoacromion (20), and meta-acromion (2)...
May 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28479257/liposomal-bupivacaine-versus-indwelling-interscalene-nerve-block-for-postoperative-pain-control-in-shoulder-arthroplasty-a-prospective-randomized-controlled-trial
#11
Jeffrey T Abildgaard, Keith T Lonergan, Stefan J Tolan, Michael J Kissenberth, Richard J Hawkins, Richard Washburn, Kyle J Adams, Catherine D Long, E Carlisle Shealy, Jay R Motley, John M Tokish
BACKGROUND: Pain management strategies following shoulder arthroplasty vary significantly. Liposomal bupivacaine (LB) is an extended-release delivery of a phospholipid bilayer encapsulating bupivacaine that can result in drug delivery up to 72 hours. Prior studies in lower extremity surgery demonstrated efficacy of LB in comparison to a single-shot peripheral nerve block; however, no study has investigated LB in a total shoulder arthroplasty population. Therefore, this study compared LB vs...
May 4, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28464752/the-accuracy-and-precision-of-radiostereometric-analysis-in-upper-limb-arthroplasty
#12
Bart Ten Brinke, Annechien Beumer, Koen L M Koenraadt, Denise Eygendaal, Gerald A Kraan, Nina M C Mathijssen
Background and purpose - Radiostereometric analysis (RSA) is an accurate method for measurement of early migration of implants. Since a relation has been shown between early migration and future loosening of total knee and hip prostheses, RSA plays an important role in the development and evaluation of prostheses. However, there have been few RSA studies of the upper limb, and the value of RSA of the upper limb is not yet clear. We therefore performed a systematic review to investigate the accuracy and precision of RSA of the upper limb...
June 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28463917/conversion-to-reverse-total-shoulder-arthroplasty-with-and-without-humeral-stem-retention-the-role-of-a-convertible-platform-stem
#13
Lynn A Crosby, Thomas W Wright, Stephen Yu, Joseph D Zuckerman
BACKGROUND: Revision shoulder arthroplasty is a technically challenging procedure. It is associated with increased blood loss and operative time, and it frequently necessitates revision implants, augments, and bone-grafting. Shoulder arthroplasty systems with a convertible-platform humeral stem have been developed to reduce the complexity of revision procedures by eliminating the need for humeral component explantation when converting from anatomic shoulder arthroplasty (hemiarthroplasty or total shoulder arthroplasty) to reverse total shoulder arthroplasty (rTSA)...
May 3, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28459709/the-humeral-implant-in-shoulder-arthroplasty
#14
Jay D Keener, Peter Nissen Chalmers, Ken Yamaguchi
Humeral hemiarthroplasty, anatomic total shoulder arthroplasty, and reverse total shoulder arthroplasty all rely on a prosthetic articular surface fixed to the proximal humerus. Humeral implant designs have changed considerably as a result of improved understanding of proximal humeral anatomy and prosthetic biomechanics. Fixed, monoblock implants have been superseded by modular implants with variable inclination, offset, version, and stem length. Press-fit designs now commonly have surface coatings that allow bony ingrowth...
June 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28459423/multivariate-analysis-of-blood-transfusion-rates-after-shoulder-arthroplasty
#15
Joseph J King, Matthew R Patrick, Ryan E Schnetzer, Kevin W Farmer, Aimee M Struk, Cyndi Garvan, Thomas W Wright
A retrospective review was performed of all shoulder arthroplasties with patients grouped on the basis of transfusion protocol time period. Group 1 had transfusions if postoperative hematocrit was <30. Group 2 had transfusions based on symptomatic anemia. Bivariate analysis of transfusion factors and multivariate analysis of significant bivariate factors were performed. Protocol change decreased transfusion rates from 16% (group 1, 153 arthroplasties) to 8% (group 2, 149 arthroplasties). Reverse shoulder arthroplasty (RTSA) transfusion rate decreased dramatically (from 24% to 5%)...
2017: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/28456358/patient-outcomes-as-a-function-of-shoulder-surgeon-volume-a-systematic-review
#16
REVIEW
Kent T Weinheimer, Dallas M Smuin, Aman Dhawan
PURPOSE: To examine surgical complications, length of stay, surgical time, cost, revision rates, clinical outcomes, current surgical trends. and minimum number of cases in relationship to surgeon volume for shoulder arthroplasty and rotator cuff repair. METHODS: We performed a systematic review of studies using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. All studies that met inclusion criteria from January 1990 to January 2016 were included...
April 26, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28455478/early-migration-of-a-partially-cemented-fluted-glenoid-component-inserted-using-a-cannulated-preparation-system
#17
D Nuttall, A Birch, J F Haines, A C Watts, I A Trail
AIMS: Radiostereometric analysis (RSA) allows an extremely accurate measurement of early micromotion of components following arthroplasty. PATIENTS AND METHODS: In this study, RSA was used to measure the migration of 11 partially cemented fluted pegged glenoid components in patients with osteoarthritis who underwent total shoulder arthroplasty using an improved surgical technique (seven men, four women, mean age 68). Patients were evaluated clinically using the American Shoulder and Elbow Surgeons (ASES) and Constant-Murley scores and by CT scans two years post-operatively...
May 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28455477/long-term-outcomes-of-cemented-versus-cementless-humeral-components-in-arthroplasty-of-the-shoulder-a-propensity-score-matched-analysis
#18
J-D Werthel, G Lonjon, S Jo, R Cofield, J W Sperling, B T Elhassan
AIMS: In the initial development of total shoulder arthroplasty (TSA), the humeral component was usually fixed with cement. Cementless components were subsequently introduced. The aim of this study was to compare the long-term outcome of cemented and cementless humeral components in arthroplasty of the shoulder. PATIENTS AND METHODS: All patients who underwent primary arthroplasty of the shoulder at our institution between 1970 and 2012 were included in the study...
May 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28444541/reverse-shoulder-arthroplasty-for-massive-irreparable-rotator-cuff-tears-and-cuff-tear-arthropathy-a-systematic-review
#19
REVIEW
S Petrillo, U G Longo, R Papalia, V Denaro
PURPOSE: To report the outcomes and complications of reverse shoulder arthroplasty (RSA) in massive irreparable rotator cuff tears (MIRCT) and cuff tear arthropathy (CTA). METHODS: A systematic review of the literature contained in Medline, Cochrane, EMBASE, Google Scholar and Ovid databases was conducted on May 1, 2016, according to PRISMA guidelines. The key words "reverse total shoulder arthroplasty" or "reverse total shoulder prostheses" with "rotator cuff tears"; "failed rotator cuff surgery"; "massive rotator cuff tears"; "irreparable rotator cuff tears"; "cuff tear arthropathy"; "outcomes"; "complications" were matched...
April 25, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28437503/subscapularis-tenotomy-versus-lesser-tuberosity-osteotomy-for-total-shoulder-arthroplasty-a-systematic-review
#20
Philip K Louie, David M Levy, Bernard R Bach, Gregory P Nicholson, Anthony A Romeo
Subscapularis tenotomy (ST) has been the standard method of mobilizing the subscapularis during the approach to a total shoulder arthroplasty (TSA). Recently, lesser tuberosity osteotomy (LTO), which avoids subscapularis complications, has gained in popularity. We performed a systematic review to elucidate any differences in clinical or radiographic outcomes between ST and LTO. Using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, we identified clinical and/or radiographic TSA studies with minimum mean 2-year follow-up and level I to IV evidence...
March 2017: American Journal of Orthopedics
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