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Rotator cuff shoulder

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https://www.readbyqxmd.com/read/28087164/anatomic-study-and-electromyographic-analysis-of-the-teres-minor-muscle
#1
Junichiro Hamada, Akimoto Nimura, Kunio Yoshizaki, Keiichi Akita
BACKGROUND: The teres minor muscle is a focused topic on the treatment of massive rotator cuff tears and reverse total shoulder arthroplasty. Its precise anatomy and function have not been completely investigated. The purposes of this study were to anatomically investigate the muscle and analyze electromyographic (EMG) activities during shoulder motion. METHODS: This anatomic study used 20 shoulders from deceased donors (mean age, 75.0 years). EMG data were recorded from 10 healthy volunteers (mean age, 21...
January 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28086879/validity-evidence-for-two-objective-structured-clinical-examination-stations-to-evaluate-core-skills-of-the-shoulder-and-knee-assessment
#2
Michael J Battistone, Andrea M Barker, J Peter Beck, Robert Z Tashjian, Grant W Cannon
BACKGROUND: We developed two objective structured clinical examinations (OSCEs) to educate and evaluate trainees in the evaluation and management of shoulder and knee pain. Our objective was to examine the evidence for validity of these OSCEs. METHODS: A multidisciplinary team of content experts developed checklists of exam maneuvers and criteria to guide rater observations. Content was proposed by faculty, supplemented by literature review, and finalized using a Delphi process...
January 13, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28078874/tendonitis-of-the-rotator-cuff-treated-with-extracorporeal-shock-wave-therapy-radiographic-monitoring-to-identify-prognostic-factors-for-disintegration
#3
A Notarnicola, L Moretti, G Maccagnano, S Tafuri, B Moretti
Extracorporeal shock wave therapy (ESWT) is widely used for calcific tendonitis of the shoulder. The initial rationale for this therapy was to break the calcification, but this effect does not always occur. To date, we do not know how calcifications evolve or why they may be less responsive to the action of the shock waves. One hundred and seventy-four shoulders with calcific tendinitis were prospectively evaluated before and after ESWT, using the radiographic classifications according to Gartner and Heyer, to Bosworth and to Molè...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28076600/use-of-cuff-tear-arthroplasty-head-prosthesis-for-rotator-cuff-arthropathy-treatment-in-elderly-patients-with-comorbidities
#4
Cassiano Diniz Carvalho, Carlos Vicente Andreoli, Alberto de Castro Pochini, Benno Ejnisman
Objective: To evaluate the clinical and functional behavior of patients undergoing cuff tear arthroplasty at different stages of the disease. Methods: Cuff tear arthroplasty hemiarthroplasties were performed in 34 patients with rotator cuff arthropathy and associated comorbidities, classified according to Seebauer. The mean age was 76.3 years, and the sample comprised 23 females (67.6%) and 11 males (32.4%). The mean follow-up period was 21.7 months, and evaluations were performed using the Visual Analog Scale for pain and the Constant scale...
October 2016: Einstein
https://www.readbyqxmd.com/read/28071815/effect-of-glenohumeral-elevation-on-subacromial-supraspinatus-compression-risk-during-simulated-reaching
#5
Rebekah L Lawrence, Dustin M Schlangen, Katelyn A Schneider, Jonathan Schoenecker, Andrea L Senger, William C Starr, Justin L Staker, Jutta M Ellermann, Jonathan P Braman, Paula M Ludewig
Mechanical subacromial rotator cuff compression is one theoretical mechanism in the pathogenesis of rotator cuff disease. However, the relationship between shoulder kinematics and mechanical subacromial rotator cuff compression across the range of humeral elevation motion is not well understood. The purpose of this study was to investigate the effect of humeral elevation on subacromial compression risk of the supraspinatus during a simulated functional reaching task. Three-dimensional anatomical models were reconstructed from shoulder magnetic resonance images acquired from 20 subjects (10 asymptomatic, 10 symptomatic)...
January 10, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28067561/current-concepts-in-the-management-of-irreparable-rotator-cuff-tears
#6
Mustafa Javed, Angus Robertson, Richard Evans
Irreparable rotator cuff tears can be painful and cause significant limitation of shoulder function. Treatment protocols have been proposed but there is no current gold standard for their management. This article summarizes the evidence for current practice in their treatment.
January 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28064003/a-semi-automated-quantitative-ct-method-for-measuring-rotator-cuff-muscle-degeneration-in-shoulders-with-primary-osteoarthritis
#7
Alexandre Terrier, Julien Ston, Antoine Dewarrat, Fabio Becce, Alain Farron
BACKGROUND: Rotator cuff muscle degeneration is an important parameter to consider when planning shoulder arthroplasty. HYPOTHESIS: We hypothesized that rotator cuff muscle degeneration is correlated with scapulohumeral subluxation in patients planned for anatomical total shoulder arthroplasty (TSA). MATERIALS AND METHODS: We developed a semi-automated quantitative CT method to measure rotator cuff muscle degeneration, and retrospectively analyzed 107 preoperative shoulder CT scans of patients with primary osteoarthritis...
January 4, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28063677/the-results-of-tension-band-rotator-cuff-suture-fixation-of-locked-plating-of-displaced-proximal-humerus-fractures
#8
Dave R Shukla, Steven McAnany, Christian Pean, Samuel Overley, Andrew Lovy, Bradford O Parsons
INTRODUCTION: The purpose of this study was to assess 1-year outcomes of patients with displaced proximal humerus fractures who underwent treatment with locked plate fixation with rotator cuff suture augmentation. METHODS: A total of 86 patients who had sustained 2, 3 and 4-part displaced proximal humerus fractures underwent locked plate fixation with multiple sutures placed in the cuff tendons. Clinical outcome variables included active forward elevation (AFE), active external rotation (AER), and Constant and American Shoulder and Elbow Surgeons (ASES) scores...
December 29, 2016: Injury
https://www.readbyqxmd.com/read/28053265/effectiveness-of-open-and-arthroscopic-rotator-cuff-repair-ukuff-a-randomised-controlled-trial
#9
A Carr, C Cooper, M K Campbell, J Rees, J Moser, D J Beard, R Fitzpatrick, A Gray, J Dawson, J Murphy, H Bruhn, D Cooper, C Ramsay
AIMS: The appropriate management for patients with a degenerative tear of the rotator cuff remains controversial, but operative treatment, particularly arthroscopic surgery, is increasingly being used. Our aim in this paper was to compare the effectiveness of arthroscopic with open repair of the rotator cuff. PATIENTS AND METHODS: A total of 273 patients were recruited to a randomised comparison trial (136 to arthroscopic surgery and 137 to open surgery) from 19 teaching and general hospitals in the United Kingdom...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28050640/is-the-humeral-stem-useful-in-anatomic-total-shoulder-arthroplasty
#10
Philippe Collin, Tetsu Matsukawa, Pascal Boileau, Ulrich Brunner, Gilles Walch
PURPOSE: Traditionally and since Neer, the humeral side of shoulder arthroplasty consisted of a stemmed component but the real need for stem fixation in total shoulder arthroplasty (TSA) has barely been investigated. The current study evaluated the clinical and radiological outcomes with a stemless TSA. METHODS: Forty-seven patients, 20 female and 27 male patients with an average age of 63, were selected in four orthopaedic centres during a four year period, and implanted with a humeral head prosthesis with a three-fin design and titanium coating...
January 3, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28043311/acromion-types-and-role-of-corticosteroid-with-shoulder-impingement-syndrome
#11
Muhammad Akram, Syed Faraz Ul Hassan Shah Gillani, Faheem Mubashir Farooqi, Syed Muhammad Awais
OBJECTIVE: To determine the association between shoulder impingement and morphological characteristics of acromion and the role of sub-acromial injection of methylprednisolone in the short-term treatment for relieving pain and improve functional disability of these patients. STUDY DESIGN: A descriptive study. PLACE AND DURATION OF STUDY: Department of Orthopedic Surgery and Traumatology Unit-I (DOST-I), Mayo Hospital, Lahore, between November 2013 to June 2014...
December 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28038912/effect-of-lateralized-design-on-muscle-and-joint-reaction-forces-for-reverse-shoulder-arthroplasty
#12
William Liou, Yang Yang, Graysen R Petersen-Fitts, Daniel J Lombardo, Sasha Stine, Vani J Sabesan
BACKGROUND: Manufacturers of reverse shoulder arthroplasty (RSA) implants have recently designed innovative implants to optimize performance in rotator cuff-deficient shoulders. These advancements are not without tradeoffs and can have negative biomechanical effects. The objective of this study was to develop an integrated finite element analysis-kinematic model to compare the muscle forces and joint reaction forces (JRFs) of 3 different RSA designs. METHODS: A kinematic model of a normal shoulder joint was adapted from the Delft model and integrated with the well-validated OpenSim shoulder model...
December 27, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28035424/clinical-outcome-and-prognostic-factors-of-revision-arthroscopic-rotator-cuff-tear-repair
#13
Maria Valencia Mora, Diana Morcillo Barrenechea, Maria Dolores Martín Ríos, Antonio M Foruria, Emilio Calvo
PURPOSE: The aim of this study was to evaluate the clinical outcome of arthroscopic rotator cuff revision surgery in a cohort of patients and to identify prognostic factors for this procedure. METHODS: Fifty-one consecutive patients undergoing revision arthroscopic rotator cuff repair were prospectively followed over a minimum period of one year. Radiologic findings and clinical data regarding primary and revision surgery were collected. Clinical evaluation was performed pre- and post-operatively by means of Constant Score and Simple Shoulder Test...
December 29, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28034721/relationship-between-subacromial-bursitis-on-ultrasonography-and-efficacy-of-subacromial-corticosteroid-injection-in-rotator-cuff-disease-a-prospective-comparison-study
#14
Doo-Hyung Lee, Ji Yeon Hong, Michael Young Lee, Kyu-Sung Kwack, Seung-Hyun Yoon
OBJECTIVE: To evaluate the correlations between subacromial bursitis (bursal thickening and effusion) on ultrasonography and its response to subacromial corticosteroid injection in rotator cuff disease patients. DESIGN: Prospective, longitudinal comparison study. SETTING: University-affiliated tertiary care hospital. PARTICIPANTS: Patients with rotator cuff disease (N=69) were classified into three groups based on ultrasonographic findings; (1) normal bursa group (group 1, n=23): bursa and effusion thickness <1 mm, (2) bursa thickening group (group 2, n=22): bursa thickness >2 mm and effusion thickness <1 mm, (3) bursa effusion group (group 3, n=24): bursa thickness <1 mm and effusion thickness >2 mm...
December 26, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28032029/evaluation-and-treatment-of-internal-impingement-of-the-shoulder-in-overhead-athletes
#15
REVIEW
Keith T Corpus, Christopher L Camp, David M Dines, David W Altchek, Joshua S Dines
One of the most common pathologic processes seen in overhead throwing athletes is posterior shoulder pain resulting from internal impingement. "Internal impingement" is a term used to describe a constellation of symptoms which result from the greater tuberosity of the humerus and the articular surface of the rotator cuff abutting the posterosuperior glenoid when the shoulder is in an abducted and externally rotated position. The pathophysiology in symptomatic internal impingement is multifactorial, involving physiologic shoulder remodeling, posterior capsular contracture, and scapular dyskinesis...
December 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28026107/a-hierarchical-task-analysis-of-shoulder-arthroscopy-for-a-virtual-arthroscopic-tear-diagnosis-and-evaluation-platform-vatdep
#16
Doga Demirel, Alexander Yu, Seth Cooper-Baer, Aditya Dendukuri, Tansel Halic, Sinan Kockara, Nizamettin Kockara, Shahryar Ahmadi
BACKGROUND: Shoulder arthroscopy is a minimally invasive surgical procedure for diagnosis and treatment of a shoulder pathology. The procedure is performed with a fiber optic camera, called arthroscope, and instruments inserted through very tiny incisions made around the shoulder. The confined shoulder space, unintuitive camera orientation and constrained instrument motions complicates the procedure. Therefore, surgical competence in arthroscopy entails extensive training especially for psychomotor skills development...
December 27, 2016: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28025374/effect-of-local-anesthetic-concentration-0-2-vs-0-1-ropivacaine-on-pulmonary-function-and-analgesia-after-ultrasound-guided-interscalene-brachial-plexus-block-a-randomized-controlled-study
#17
Andrew K Wong, Lauren Georgiades Keeney, Liting Chen, Rebekah Williams, Jiabin Liu, Nabil M Elkassabany
OBJECTIVE: This study aims to assess diaphragmatic excursion and measure pulmonary functions as measures of the degree to which the phrenic nerve is blocked after ISB with two different concentrations of ropivacaine: 0.2% and 0.1%. DESIGN: Randomized, double-blinded study. SETTING AND PATIENTS: Ambulatory surgical facility. SUBJECTS: Fifty patients undergoing shoulder arthroscopy for rotator cuff repair. METHODS: Patients were randomized to receive ultrasound-guided ISB with 20 mL of either 0...
December 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28005116/arthroscopic-transosseous-and-transosseous-equivalent-rotator-cuff-repair-an-analysis-of-cost-operative-time-and-clinical-outcomes
#18
Adam J Seidl, Nicholas J Lombardi, Mark D Lazarus, Eric M Black, Mitchell G Maltenfort, Matthew D Pepe, Luke S Austin
The incidence of arthroscopic rotator cuff repair (RCR) continues to rise. Given the changing healthcare climate, it is becoming increasingly important to critically evaluate current practice and attempt to make modifications that decrease costs without compromising patient outcomes. We conducted a study of the costs associated with arthroscopic anchorless (transosseous [TO]) RCR and those associated with the more commonly performed anchor-based TO-equivalent (TOE) method to determine whether there are any cost savings with the TO-RCR method...
November 2016: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28003232/anaplastic-large-cell-lymphoma-masquerading-as-osteomyelitis-of-the-shoulder-an-uncommon-presentation
#19
Matthew Tuck, Jane Lim, Jose Lucar, Debra Benator
The presentation of anaplastic lymphoma kinase protein (ALK)-negative anaplastic large cell lymphoma (ALCL) in bone is rare. We describe a patient with ALK-negative ALCL presenting with clinical and radiographic findings suggesting osteomyelitis 6 months after left rotator cuff repair surgery. A review of the characteristics of ALK-negative ALCL with primary bone involvement is presented. ALCL should be considered in patients not responding to therapies for osteomyelitis.
December 21, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/28002909/risk-factors-for-post-operative-shoulder-stiffness-are-there-new-candidates
#20
D Cucchi, A Menon, F M Feroldi, A Kwapisz, F Randelli, F Cabitza, A Tassi, P Randelli
The aim of this study was to document the incidence of postoperative shoulder stiffness (SS) after arthroscopic rotator cuff repair and evaluate the role of risk factors for its development. Seventy-five consecutive patients that underwent arthroscopic rotator cuff repair were included. The incidence of postoperative SS was prospectively investigated and the presence of 20 potential risk factors was documented retrospectively. The incidence of post-operative SS was 10.4%. All patients were women, and sex was significantly associated to pathology development (p=0...
October 2016: Journal of Biological Regulators and Homeostatic Agents
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