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Journal of Shoulder and Elbow Surgery

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https://www.readbyqxmd.com/read/29449084/paralabral-cysts-of-the-shoulder-treated-with-isolated-labral-repair-effect-on-pain-and-radiologic-findings
#1
Cecilie P Schrøder, Kirsten Lundgreen, Rune Kvakestad
BACKGROUND: Paralabral cysts emanating from posterosuperior labral tears may compress the suprascapular nerve and induce neuropathy. This study prospectively assessed patients with labral tears and symptomatic paralabral cysts treated with isolated labral repair. Pain relief, time to cyst resolution, reversibility of muscular edema, atrophy, fatty infiltration, and bone erosion were evaluated. METHODS: Forty-seven patients with symptomatic posterosuperior paralabral cysts were treated with isolated labral repair...
February 13, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29449083/three-dimensional-scapular-dyskinesis-in-hook-plated-acromioclavicular-dislocation-including-hook-motion
#2
Eugene Kim, Seunghee Lee, Hwa-Jae Jeong, Jai Hyung Park, Se-Jin Park, Jaewook Lee, Woosub Kim, Hee Jin Park, So Yeon Lee, Tsuyoshi Murase, Kazuomi Sugamoto, Sumika Ikemoto
BACKGROUND: The purpose of this study is to analyze the 3-dimensional scapular dyskinesis and the kinematics of a hook plate relative to the acromion after hook-plated acromioclavicular dislocation in vivo. Reported complications of acromioclavicular reduction using a hook plate include subacromial erosion and impingement. However, there are few reports of the 3-dimensional kinematics of the hook and scapula after the aforementioned surgical procedure. METHODS: We studied 15 cases of acromioclavicular dislocation treated with a hook plate and 15 contralateral normal shoulders using computed tomography in the neutral and full forward flexion positions...
February 13, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29444755/preventing-infection-in-shoulder-surgery
#3
REVIEW
Jason J C Clark, Jeffrey T Abildgaard, Jeffrey Backes, Richard J Hawkins
Although rare, infection after shoulder surgery can represent a devastating complication. Infection can negatively affect clinical outcomes, and eradication often requires a protracted treatment course. Staphylococcus aureus, Staphylococcus epidermidis, and Propionibacterium acnes are among the most frequently isolated pathogens. Perioperative measures can be implemented to reduce infection risk. Here we review various perioperative practices and their efficacy at reducing infection after shoulder surgery.
February 12, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29444754/clinical-rating-systems-in-elbow-research-a-systematic-review-exploring-trends-and-distributions-of-use
#4
REVIEW
Jonathan P Evans, Chris D Smith, Nicola F Fine, Ian Porter, Jaheeda Gangannagaripalli, Victoria A Goodwin, Jose M Valderas
BACKGROUND: Clinical rating systems are used as outcome measures in clinical trials and attempt to gauge the patient's view of his or her own health. The choice of clinical rating system should be supported by its performance against established quality standards. METHODS: A search strategy was developed to identify all studies that reported the use of clinical rating systems in the elbow literature. The strategy was run from inception in Medline Embase and CINHAL...
February 12, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29433980/fatty-infiltration-and-muscle-atrophy-of-the-rotator-cuff-in-stemless-total-shoulder-arthroplasty-a-prospective-cohort-study
#5
Arkan S Sayed-Noor, Raymond Pollock, Bassem T Elhassan, Bakir Kadum
BACKGROUND: The influence of preoperative rotator cuff fatty infiltration (FI) and muscle atrophy (MA) on the postoperative outcome of total shoulder arthroplasty (TSA) has only rarely been investigated and reported in the literature. We hypothesized that more FI and MA would be associated with a worse postoperative functional outcome. METHODS: This prospective cohort study included 63 patients (31 female and 32 male patients; mean age, 71 years [range, 53-89 years; standard deviation, 7 years]) with primary osteoarthritis of the shoulder operated on with anatomic stemless TSA...
February 9, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29428293/impact-of-spine-alignment-on-the-rotator-cuff-in-long-term-wheelchair-users
#6
Yasser Kentar, Manuela Brunner, Thomas Bruckner, Andreas Hug, Patric Raiss, Felix Zeifang, Markus Loew, Haidara Almansour, Michael Akbar
BACKGROUND: We investigated the impact of poor seated posture on the prevalence of rotator cuff tears (RCTs) among wheelchair-dependent individuals with long-standing paraplegia. METHODS: The study included 319 patients. Lateral radiographs of the spine were collected from a database and analyzed to assess the global spinopelvic alignment (SPA). Magnetic resonance images of both shoulders were obtained to detect the presence of cuff tears. Patients were divided into 2 groups: Group RCT-I included all patients with cuff tears (right, left, or bilateral), whereas group RCT-II consisted exclusively of patients with bilateral cuff tears...
February 8, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29426743/bridging-multimodal-pain-management-provides-48-hour-pain-control-in-patients-undergoing-total-shoulder-replacement
#7
Chandrakanth Boddu, Ashley Genza, Peter D McCann
BACKGROUND: We report our experience with a bridging multimodal pain management program that provides comprehensive 48-hour pain control in patients undergoing total shoulder replacement (TSR). METHODS: The study included all patients undergoing unilateral TSR by 1 surgeon between May 2015 and April 2017. There were 62 patients (23 men, 39 women) with an average age of 68 years (range 38-92 years). Of these, 31 underwent standard nonconstrained TSR and 31 underwent reverse TSR...
February 7, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29426742/sequential-3-dimensional-computed-tomography-analysis-of-implant-position-following-total-shoulder-arthroplasty
#8
Eric T Ricchetti, Bong-Jae Jun, Richard A Cain, Ari Youderian, Eric J Rodriguez, David Kusin, Naveen Subhas, Thomas E Patterson, Joseph P Iannotti
BACKGROUND: Detection of postoperative component position and implant shift following total shoulder arthroplasty (TSA) can be challenging using routine imaging. The purpose of this study was to evaluate glenoid component position over time using 3-dimensional computed tomography (CT) analysis with minimum 2-year follow-up. METHODS: Twenty patients underwent primary TSA with sequential CT scanning of the shoulder: a preoperative study, an immediate postoperative study within 2 weeks of surgery, and a postoperative study performed at minimum 2-year follow-up (CT3)...
February 7, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29426741/lower-shoulder-abduction-during-throwing-motion-may-cause-forceful-internal-impingement-and-decreased-anterior-stability
#9
Masaki Akeda, Teruhisa Mihata, Woong Kyo Jeong, Michelle H McGarry, Tetsuya Yamazaki, Thay Q Lee
BACKGROUND: Internal impingement and decreased anterior stability, which result from shoulder capsular loosening, are common shoulder pathologies in throwing athletes. The purpose of this study was to assess the effect of shoulder abduction angle on shoulder internal impingement and anterior shoulder stability during the simulated throwing motion. METHODS: Eight cadaveric shoulders were tested by simulating the late-cocking and acceleration phases of the throwing motion for intact and thrower's shoulder conditions...
February 7, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29422391/stress-shielding-of-the-humerus-in-press-fit-anatomic-shoulder-arthroplasty-review-and-recommendations-for-evaluation
#10
REVIEW
Patrick J Denard, Patric Raiss, Reuben Gobezie, T Bradley Edwards, Evan Lederman
Uncemented press-fit humeral stems were developed with the goal of decreasing operative time, preserving bone stock, and easing revision. In recent years, short stems and stemless humeral implants have also become available. These press-fit humeral implants have varying designs that can lead to changes in stress distribution in the proximal humerus. Such stress shielding manifests as bony adaptations and may affect long-term functional outcome and the ability to perform revision. However, current studies of humeral fixation during total shoulder arthroplasty are complicated because a variety of classification systems have been used to report findings...
February 5, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29415824/a-morphovolumetric-study-of-head-malposition-in-proximal-humeral-fractures-based-on-3-dimensional-computed-tomography-scans-the-control-volume-theory
#11
Raffaele Russo, Antonio Guastafierro, Livia Renata Pietroluongo
BACKGROUND: This study regards a volumetric analysis of proximal humeral fractures. The main purpose was to investigate the head displacement in relation to the shaft and its link to volume reductions ("bone loss") of the anatomic segments interposed between the head and the shaft: the tuberosities and the calcar. We call this area "control volume." METHODS: In 20 fractures, we used 3-dimensional virtual reconstruction to create a reference system that divides geometrically the control volume and allows the evaluation of displacement angles of the humeral head...
February 5, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29398399/augmentation-with-a-reinforced-acellular-fascia-lata-strip-graft-limits-cyclic-gapping-of-supraspinatus-repairs-in-a-human-cadaveric-model
#12
Ryan A Milks, Joel D Kolmodin, Eric T Ricchetti, Joseph P Iannotti, Kathleen A Derwin
BACKGROUND: A reinforced biologic strip graft was designed to mechanically augment the repair of rotator cuff tears that are fully reparable by arthroscopic techniques yet have a likelihood of failure. This study assessed the extent to which augmentation of human supraspinatus repairs with a reinforced fascia strip can reduce gap formation during in vitro cyclic loading. METHODS: The supraspinatus tendon was sharply released from the proximal humerus and repaired back to its insertion with anchors in 9 matched pairs of human cadaveric shoulders...
February 2, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29398398/recurrent-rotator-cuff-tear-is-ultrasound-imaging-reliable
#13
Ron Gilat, Ehud Atoun, Ornit Cohen, Oren Tsvieli, Ehud Rath, Dror Lakstein, Ofer Levy
BACKGROUND AND HYPOTHESIS: The diagnostic workup of the painful shoulder after rotator cuff repair (RCR) can be quite challenging. The aim of this study was to assess the reliability of ultrasonography (US) for the detection of recurrent rotator cuff tears in patients with shoulder pain after RCR. We hypothesized that US for the diagnosis of recurrent rotator cuff tear after RCR would not prove to be reliable when compared with surgical arthroscopic confirmation (gold standard). METHODS: In this cohort study (diagnosis), we retrospectively analyzed the data of 39 patients with shoulder pain after arthroscopic RCR who had subsequently undergone US, followed by revision arthroscopy...
February 2, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29398397/latissimus-dorsi-transfer-for-irreparable-subscapularis-tendon-tears
#14
Sang Won Mun, Ji Young Kim, Seung Hoon Yi, Chang Hee Baek
BACKGROUND: There are several tendon transfers for reconstruction of irreparable subscapularis tears. The latissimus dorsi (LD) could be used because its direction and function are similar to those of the subscapularis. We performed LD transfers for irreparable subscapularis tears and evaluated clinical outcomes. METHODS: The study enrolled 24 consecutive patients who underwent LD transfers. Clinical and functional outcomes were evaluated using the Constant score, American Shoulder and Elbow Surgeons score, pain visual analog scale, and range of shoulder motion preoperatively and at last follow-up...
February 2, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29398396/radiocapitellar-prosthetic-arthroplasty-short-term-to-midterm-results-of-19-elbows
#15
Amir R Kachooei, Nicole A M Heesakkers, Andras Heijink, Bertram The, Denise Eygendaal
BACKGROUND: Few studies have discussed the short-term results of radiocapitellar (RC) prosthetic arthroplasty (PA). In this study, we assessed the short-term to midterm functional and radiographic results of elbows after RC PA. Our secondary aim was to assess the survival of the RC PA. METHODS: We included 19 elbows in 18 patients with a mean follow-up of 35 months (range, 12-88 months). Patients were examined for instability and range of motion and were assessed using Mayo Elbow Performance Index and Oxford Elbow Score at any subsequent visits...
February 1, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29398395/quantifying-success-after-total-shoulder-arthroplasty-the-substantial-clinical-benefit
#16
Ryan Simovitch, Pierre-Henri Flurin, Thomas Wright, Joseph D Zuckerman, Christopher P Roche
BACKGROUND: An understanding of the substantial clinical benefit (SCB) after total shoulder arthroplasty (TSA) may help to gauge a minimum threshold beyond which a patient perceives his or her outcome as being substantially better. This study quantifies SCB for 7 outcome metrics and active motion measurements after shoulder arthroplasty and determines how these values vary based on prosthesis type, patient age at surgery, sex, and length of follow-up. METHODS: A total of 1,568 shoulder arthroplasties with 2-year minimum follow-up were performed by 13 shoulder surgeons and enrolled in a multicenter registry...
February 1, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29398394/outcomes-of-an-anatomic-total-shoulder-arthroplasty-with-a-contralateral-reverse-total-shoulder-arthroplasty
#17
Ryan M Cox, Eric M Padegimas, Joseph A Abboud, Charles L Getz, Mark D Lazarus, Matthew L Ramsey, Gerald R Williams, John G Horneff
BACKGROUND: It is common for patients to require staged bilateral shoulder arthroplasties. There is a unique cohort of patients who require an anatomic total shoulder arthroplasty (TSA) and a contralateral reverse shoulder arthroplasty (RSA). This study compared the outcomes of patients with a TSA in 1 shoulder and an RSA in the contralateral shoulder. METHODS: Our institutional database was queried to identify all patients with a TSA and a contralateral RSA. Data collection included patient demographics, preoperative and latest follow-up shoulder range of motion, radiographic analysis, and postoperative complications...
February 1, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29397295/glenoid-neck-hounsfield-units-on-computed-tomography-can-accurately-identify-patients-with-low-bone-mineral-density
#18
Kyle E Nappo, Daniel L Christensen, Jared A Wolfe, Scott M Tintle
BACKGROUND: Osteoporosis is a costly and morbid disease with the first presentation often with a fragility fracture. The purpose of this study was to assess whether Hounsfield unit (HU) measurements on shoulder computed tomography could identify patients at risk of osteoporosis and aid in its diagnosis. METHODS: We identified patients who had both a computed tomography scan of the glenoid and a dual-energy x-ray absorptiometry scan. Dual-energy x-ray absorptiometry results and HU measurements of the patients' glenoid were recorded...
January 31, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29397294/a-prospective-study-of-coracoclavicular-ligament-reconstruction-with-autogenous-peroneus-longus-tendon-for-acromioclavicular-joint-dislocations
#19
Yu Zhu, Peilin Hsueh, Bingfang Zeng, Yimin Chai, Changqing Zhang, Yunfeng Chen, Yuchen Wang, Tuerxun Maimaitiaili
BACKGROUND: Anatomic coracoclavicular (CC) ligament reconstruction (ACCR) provides good outcomes for Rockwood type III and VI acromioclavicular (AC) joint dislocations. Various grafts have been used, but complications from graft harvesting are not uncommon. This study examined the clinical and radiographic outcomes of patients with AC joint dislocations repaired with the autogenous anterior half of the peroneus longus tendon (AHPLT) to achieve ACCR. METHODS: Patients with a Rockwood type III to V AC joint dislocation and magnetic resonance imaging of the disruption of the CC ligaments, as well as the AC capsule, were prospectively recruited...
January 31, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29396102/the-accelerated-effect-of-recombinant-human-bone-morphogenetic-protein-2-delivered-by-%C3%AE-tricalcium-phosphate-on-tendon-to-bone-repair-process-in-rabbit-models
#20
Yoshihiro Hirakawa, Tomoya Manaka, Kumi Orita, Yoichi Ito, Koichi Ichikawa, Hiroaki Nakamura
BACKGROUND: Bone morphogenetic protein 2 (BMP-2) plays an important role in the tendon-to-bone repair process. However, there is no previous literature on acceleration of the tendon-to-bone repair process by BMP-2 delivered by β-tricalcium phosphate (β-TCP). The aim of this study was to investigate the accelerated effect of recombinant human BMP-2 (rhBMP-2) delivered by β-TCP on the tendon-to-bone repair process. METHODS: The infraspinatus tendon of elderly female Japanese white rabbits was detached from its insertion site on the humerus...
January 30, 2018: Journal of Shoulder and Elbow Surgery
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