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Journal of Shoulder and Elbow Surgery

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https://www.readbyqxmd.com/read/28705694/rotator-cuff-bridging-repair-using-acellular-dermal-matrix-in-large-to-massive-rotator-cuff-tears-histologic-and-clinical-analysis
#1
Jong Ok Kim, Jong-Ho Lee, Kwang-Sup Kim, Jong-Hun Ji, Sung-Jun Koh, Jae-Ho Lee
BACKGROUND: This study investigated the efficacy of the bridging repair using an acellular dermal matrix (ADM) and an ADM with stem cells in rabbits. Also investigated were clinical outcomes of ADM bridging repair for large to massive rotator cuff tears. MATERIALS AND METHODS: ADM, with and without stem cells, was used to cover a 5- × 5-mm-sized cuff defect in 17 rabbits, and biomechanical, histologic, and immunohistochemical analyses were conducted. Also evaluated were 24 patients with large to massive rotator cuff tears after ADM bridging repair...
July 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28705693/erratum-to-clinical-outcome-of-reverse-total-shoulder-arthroplasty-combined-with-latissimus-dorsi-transfer-for-the-treatment-of-chronic-combined-pseudoparesis-of-elevation-and-external-rotation-of-the-shoulder-j-shoulder-elbow-surg-2014-23-49-57
#2
https://www.readbyqxmd.com/read/28689830/is-bipolar-latissimus-dorsi-transfer-a-reliable-option-to-restore-elbow-flexion-in-children-with-arthrogryposis-a-review-of-13-tendon-transfers
#3
Ramin Zargarbashi, Mohammad Hossein Nabian, Jean-David Werthel, Philippe Valenti
BACKGROUND: Scant data are published about different available therapeutic options for restoration of active elbow flexion in arthrogryposis with varying degrees of improvement. In this retrospective study we evaluated medium-term effects of bipolar latissimus dorsi transfer in patients with arthrogryposis. METHODS: Pedicled latissimus dorsi bipolar muscle transfer was used to restore elbow flexion in 11 patients (13 limbs) with arthrogryposis. Elbow and shoulder range of motions and strength of elbow flexion were measured preoperatively and at the last follow-up...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28689829/polyethylene-dissociation-from-humeral-stem-status-after-reverse-total-shoulder-arthroplasty
#4
Karan A Patel, Kara L Boyd, Kevin J Renfree, Steven J Hattrup
BACKGROUND: Reverse shoulder arthroplasty (RSA) is an important treatment option for 4-part proximal humerus fractures in the elderly and arthrosis of the glenohumeral joint with incompetence of the rotator cuff. Unique complications do occur with use of this type of prosthesis. METHODS: We present 4 cases of polyethylene dissociation after RSA. RESULTS: In a series of 549 patients who underwent RSA, the incidence of polyethylene dissociation was found to be 0...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28689828/influence-of-humeral-head-material-on-wear-performance-in-anatomic-shoulder-joint-arthroplasty
#5
Ulrike Mueller, Steffen Braun, Stefan Schroeder, Mark Schroeder, Robert Sonntag, Sebastian Jaeger, Jan Philippe Kretzer
BACKGROUND: The number of total shoulder arthroplasties has increased in the past years, with encouraging results. However, the survival of anatomic total shoulder arthroplasty (aTSA) is lower compared with that of knee and hip replacements. Wear-associated problems like loosening are well-known causes of long-term failure of aTSA. The main purpose of this study was to investigate the wear behavior of ceramic-polyethylene bearings compared with the standard metal-polyethylene bearings...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28689827/subacromial-corticosteroid-injections-transiently-decrease-suture-anchor-pullout-strength-biomechanical-studies-in-rats
#6
Oleg Dolkart, Ofir Chechik, Assaf Bivas, Tamar Brosh, Michael Drexler, Zachary Weinerman, Eran Maman
BACKGROUND: Arthroscopic rotator cuff (RC) repair incorporates suture anchors to secure torn RC tendons to the greater tuberosity (GT) bone. RC repair strength depends on the anchor-bone interface and on the quality of the GT. We evaluated the effect of single and multiple corticosteroid injections on the pullout strength of suture anchors. METHODS: Fifty rats were divided into those receiving saline solution injection (control group), a single methylprednisolone acetate (MTA) injection (MTA1 group), or 3 once-weekly MTA injections (MTA3 group)...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28689826/patient-self-assessed-shoulder-comfort-and-function-and-active-motion-are-not-closely-related-to-surgically-documented-rotator-cuff-tear-integrity
#7
Jason E Hsu, Anna Tang, Frederick A Matsen
BACKGROUND: The rationale for rotator cuff repair surgery is that better integrity of the cuff should be associated with better comfort and function. However, in patients with cuff disease, there is not good evidence that the degree of rotator cuff integrity is closely associated with the shoulder's comfort, function, or active motion. The goal of this study was to explore these relationships in shoulders with surgically documented cuff disease. METHODS: In 55 shoulders having surgery for cuff-related symptoms, we correlated the preoperative Simple Shoulder Test score with the objectively measured preoperative active shoulder motion and with the integrity of the cuff observed at surgery...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28689825/biomechanical-analysis-of-anterior-bone-graft-augmentation-with-reversed-shoulder-arthroplasty-in-large-combined-glenoid-defects-compared-with-total-bony-joint-line-reconstruction-modified-bony-increased-offset-reversed-shoulder-arthroplasty
#8
Matthias Königshausen, Nina Sverdlova, Corinna Mersmann, Christoph Ehlert, Birger Jettkant, Rolf Dermietzel, Thomas Armin Schildhauer, Dominik Seybold
BACKGROUND: The aim of this biomechanical study was to compare 2 surgical techniques for the reconstruction of large, combined, uncontained glenoid defects with reversed shoulder arthroplasty (RSA). METHODS: Three groups of scapulae with RSA were tested by the application of a physiological combination of compressive/shear loads in Sawbones (Pacific Research Laboratories, Inc., Vashon Island, WA, USA) and cadavers. Two of the groups (both Sawbones and cadaveric specimens) consisted of anterior combined defects (14 mm in depth), and the third group served as a control group (only Sawbones specimens)...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28689824/extra-articular-shoulder-resections-outcomes-of-54-patients
#9
Andrea Angelini, Andreas F Mavrogenis, Giulia Trovarelli, Elisa Pala, Pablo Arbelaez, Josè Casanova, Antonio Berizzi, Pietro Ruggieri
BACKGROUND: The survival of patients with tumors around the shoulder treated with extra-articular resection, the rates of reconstructions-related complications, and the function of the shoulder cannot be estimated because of limited available data from mainly small published related series and case reports. METHODS: We studied 54 patients with tumors around the shoulder treated with extra-articular shoulder resections and proximal humeral megaprosthetic reconstructions from 1985 to 2012...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28689823/performance-and-return-to-sport-in-elite-baseball-players-and-recreational-athletes-following-repair-of-the-latissimus-dorsi-and-teres-major
#10
Brandon J Erickson, Peter N Chalmers, Brian R Waterman, Justin W Griffin, Anthony A Romeo
BACKGROUND: Tears of the latissimus dorsi (LD) and teres major (TM) are rare but disabling injuries in the overhead athlete. METHODS: All patients who underwent an LD and/or TM repair between January 1, 2010, and June 6, 2016, with more than 12 months' follow-up were included. Demographic information and postoperative range of motion were recorded. Patients were contacted via phone and answered questions to provide the following: Kerlan-Jobe Orthopaedic Clinic (KJOC) shoulder and elbow outcome score, American Shoulder and Elbow Surgeons (ASES) shoulder score, and visual analog scale (VAS) score...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28689822/fracture-line-morphology-of-complex-proximal-humeral-fractures
#11
Afsana P Hasan, Joideep Phadnis, Ruurd L Jaarsma, Gregory I Bain
BACKGROUND: The aim of this study was to assess proximal humeral fracture patterns using 3-dimensional computed tomography images and relate them to the normal osseous landmarks and soft-tissue attachments. METHODS: Forty-eight 3-dimensional computed tomography scans of proximal humeral fractures were retrospectively collected, and the fractures were transcribed onto proximal humeral templates. We analyzed the common location and orientation of the fracture lines, with a focus on fractures of the articular surface, tuberosities, metaphysis, and proximal diaphysis...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28689821/role-of-the-lateral-collateral-ligament-in-posteromedial-rotatory-instability-of-the-elbow
#12
Enrico Bellato, Youngbok Kim, James S Fitzsimmons, Alexander W Hooke, Lawrence J Berglund, Daniel R Bachman, Shawn W O'Driscoll
BACKGROUND: Posteromedial rotatory instability (PMRI) of the elbow consists of an anteromedial coronoid fracture with lateral collateral ligament (LCL) and posterior bundle of the medial collateral ligament (PMCL) tears. We hypothesized that the LCL tear is required for elbow subluxation/joint incongruity and that an elbow affected by an anteromedial subtype 2 coronoid fracture and a PMCL tear exhibits contact pressures different from both an intact elbow and an elbow affected by PMRI...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28689820/reverse-total-shoulder-glenoid-baseplate-stability-with-superior-glenoid-bone-loss
#13
Elise J Martin, Thomas R Duquin, Mark T Ehrensberger
BACKGROUND: Superior wear of the glenoid bone is common in patients with rotator cuff arthropathy. This can become a treatment challenge for patients who require shoulder arthroplasty. In reverse shoulder arthroplasty (RSA), glenoid bone loss may affect the stability of baseplate fixation. The primary purpose of this biomechanical laboratory study was to assess the initial fixation stability of RSA glenosphere baseplates in the presence of variable amounts of superior glenoid bone loss...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28688937/acromioplasty-in-patients-selected-for-operation-by-national-guidelines
#14
Jón Rói Jacobsen, Carsten M Jensen, Søren R Deutch
BACKGROUND: Shoulder impingement syndrome is the most common shoulder disorder. Even though conservative treatment is the primary treatment of choice, surgery has increased substantially in several countries during the last 20 years. This has resulted in recommended clinical guidelines for treatment of shoulder impingement syndrome in countries such as The Netherlands and Denmark during recent years. The aim of this study was to investigate the effectiveness of an arthroscopic subacromial decompression in 244 patients selected for surgery according to national clinical guidelines...
July 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28688936/open-versus-arthroscopic-surgical-treatment-for-anterior-shoulder-dislocation-a-comparative-systematic-review-and-meta-analysis-over-the-past-20-years
#15
REVIEW
Erik Hohmann, Kevin Tetsworth, Vaida Glatt
BACKGROUND: The purpose of this study was to perform a meta-analysis comparing open and arthroscopic surgery for the treatment of anterior shoulder instability by analyzing comparative studies during 2 different time intervals during the last 20 years. METHODS: We conducted a systematic review of MEDLINE, Embase, Scopus, and Google Scholar. Two groups were created by dividing studies according to the year of publication, those published from 1995 to 2004 or from 2005 to 2015...
July 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28688935/indirect-transfer-of-the-sternal-head-of-the-pectoralis-major-with-autogenous-semitendinosus-augmentation-to-treat-scapular-winging-secondary-to-long-thoracic-nerve-palsy
#16
Tao Li, Ze Z Yang, Yuan Deng, Ming Xiao, Chuan Jiang, Jin W Wang
BACKGROUND: Scapular winging resulting from long thoracic nerve palsy is uncommon but debilitating, and the choice of surgical treatment is inconsistent. The autogenous semitendinosus tendon plays a key role as an interposed tendon graft, although its use in the indirect transfer of the sternal head of the pectoralis major during the treatment of scapular winging has rarely been reported. MATERIALS AND METHODS: A retrospective review was performed during a 9-year period from the clinical data of 26 cases (28 shoulders) with indirect transfer of the sternal head of the pectoralis major with the interposition of an autogenous semitendinosus tendon graft for dynamic stabilization of the scapula...
July 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28688934/humeral-bone-resorption-after-anatomic-shoulder-arthroplasty-using-an-uncemented-stem
#17
Kazuya Inoue, Naoki Suenaga, Naomi Oizumi, Hiroshi Yamaguchi, Naoki Miyoshi, Noboru Taniguchi, Mitsuru Munemoto, Takuya Egawa, Yasuhito Tanaka
BACKGROUND: Bone resorption around the femoral stem after total hip arthroplasty is a well-known phenomenon. However, only a few studies have evaluated bone resorption after shoulder arthroplasty. This study investigated the prevalence of humeral bone resorption after different shoulder arthroplasty procedures. METHODS: The study included 147 shoulders that underwent total shoulder arthroplasty (TSA) or humeral head replacement (HHR) with an uncemented humeral stem from November 2008 to May 2015 and were monitored for more than 1 year...
July 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28688933/defining-optimal-calcar-screw-positioning-in-proximal-humerus-fracture-fixation
#18
Eric M Padegimas, Benjamin Zmistowski, Cassandra Lawrence, Aaron Palmquist, Thema A Nicholson, Surena Namdari
BACKGROUND: Anatomic reduction and placement of an inferior calcar screw are strategies to prevent fixation failure in proximal humerus factures. Optimal position of the calcar screw remains unknown. METHODS: There were 168 shoulders (68.5% female; average age, 63.6 ± 11.5 years) that underwent open reduction and internal fixation of a displaced proximal humerus fracture involving the surgical or anatomic neck. Univariate and multivariate analyses were performed on preoperative clinical, preoperative radiographic, and postoperative radiographic variables to determine association with fixation failure...
July 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28688932/neurologic-complications-of-shoulder-joint-replacement
#19
Craig M Ball
BACKGROUND: Little attention has been given to neurologic complications after shoulder joint replacement (SJR). Previously thought to occur infrequently, it is likely that many are not clinically recognized, and they can result in postoperative morbidity and impair the patient's recovery. The purpose of this study was to document the prevalence of nerve complications after SJR, to identify the nerves involved, and to define patient outcomes. METHODS: This was a retrospective review of 211 SJRs in 202 patients during a 5-year period were included, with 89 male and 122 female patients at an average age of 70 years...
July 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28684233/reverse-shoulder-arthroplasty-for-irreparable-massive-rotator-cuff-tears-a-systematic-review-with-meta-analysis-and-meta-regression
#20
REVIEW
Nuno Sevivas, Nuno Ferreira, Renato Andrade, Pedro Moreira, Raquel Portugal, Diogo Alves, Manuel Vieira da Silva, Nuno Sousa, António J Salgado, João Espregueira-Mendes
BACKGROUND: Massive rotator cuff tears (MRCTs) are very large tears that are often associated with an uncertain prognosis. Indeed, some MRCTs even without osteoarthritis are considered irreparable, and nonanatomic solutions are needed to improve the patient's symptoms. Reverse shoulder arthroplasty (RSA) is an option that can provide a more predictable pain relief and recovery of function. Nonetheless, outcomes after RSA for irreparable MRCTs have not been well defined. The aim of this study was to quantitatively aggregate the findings associated with the use of RSA in this subset of patients and analyze the effect on patient functional status and pain...
July 3, 2017: Journal of Shoulder and Elbow Surgery
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