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Rotator cuff injury

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https://www.readbyqxmd.com/read/29786622/quantitative-analysis-of-proximal-and-distal-kinetic-chain-musculature-during-dynamic-exercises
#1
Gretchen D Oliver, Jessica K Washington, Jeff W Barfield, Sarah S Gascon, Gabrielle Gilmer
Oliver, GD, Washington, JK, Barfield, JW, Gascon, SS, and Gilmer, G. Quantitative analysis of proximal and distal kinetic chain musculature during dynamic exercises. J Strength Cond Res 32(6): 1545-1553, 2018-Proximal to distal sequencing for the dynamic movement of throwing is dependent on the movement and stability of the lumbopelvic-hip complex (LPHC) and scapula. Although the need for proximal stability for distal mobility has been vastly documented, pre-throwing programs tend to focus on the traditional rotator cuff activation exercises before long toss...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29767810/a-novel-remaining-tendon-preserving-repair-technique-leads-to-improved-outcomes-in-special-rotator-cuff-tear-patterns
#2
Yoon Sang Jeon, Rag Gyu Kim, Sang-Jin Shin
INTRODUCTION: The purpose of this study was to identify the tear pattern that could be anatomically repaired by preserving the remaining tendon on footprint and evaluate clinical outcomes of patients who underwent remaining tendon preserving cuff repair. MATERIALS AND METHODS: Of 523 patients with full-thickness rotator cuff tears who underwent arthroscopic repair, 41 (7.8%) patients had repairable rotator cuff tear while preserving the remaining tendon. Among them, 31 patients were followed-up for more than 2 years, including 26 patients with posterior L-shaped tear and 5 patients with transtendinous tear patterns...
May 16, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29750541/fatty-infiltration-is-a-prognostic-marker-of-muscle-function-after-rotator-cuff-tear
#3
Ana P Valencia, Jim K Lai, Shama R Iyer, Katherine L Mistretta, Espen E Spangenburg, Derik L Davis, Richard M Lovering, Mohit N Gilotra
BACKGROUND: Massive rotator cuff tears (RCTs) begin as primary tendon injuries and cause a myriad of changes in the muscle, including atrophy, fatty infiltration (FI), and fibrosis. However, it is unclear which changes are most closely associated with muscle function. PURPOSE: To determine if FI of the supraspinatus muscle after acute RCT relates to short-term changes in muscle function. STUDY DESIGN: Controlled laboratory study. METHODS: Unilateral RCTs were induced in female rabbits via tenotomy of the supraspinatus and infraspinatus...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29741391/relationship-between-deltoid-and-rotator-cuff-muscles-during-dynamic-shoulder-abduction-a-biomechanical-study-of-rotator-cuff-tear-progression
#4
Felix Dyrna, Neil S Kumar, Elifho Obopilwe, Bastian Scheiderer, Brendan Comer, Michael Nowak, Anthony A Romeo, Augustus D Mazzocca, Knut Beitzel
BACKGROUND: Previous biomechanical studies regarding deltoid function during glenohumeral abduction have primarily used static testing protocols. HYPOTHESES: (1) Deltoid forces required for scapular plane abduction increase as simulated rotator cuff tears become larger, and (2) maximal abduction decreases despite increased deltoid forces. STUDY DESIGN: Controlled laboratory study. METHODS: Twelve fresh-frozen cadaveric shoulders with a mean age of 67 years (range, 64-74 years) were used...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29728740/arthroscopic-rotator-cuff-surgery-following-shoulder-trauma-improves-outcome-despite-additional-pathologies-and-slow-recovery
#5
Barak Haviv, Tal Frenkel Rutenberg, Shlomo Bronak, Mustafa Yassin
PURPOSE: To compare the outcome, recovery and surgical findings after shoulder arthroscopy of clinically defined traumatic and non-traumatic rotator cuff pathology in middle-aged patients. METHODS: Of the patients who underwent rotator cuff surgery, 37 patients who reported a preceding shoulder injury related to their shoulder symptoms (traumatic group) were compared to a control group of 58 patients without a preceding injury (non-traumatic group), matched by age, body mass index and comorbidities...
May 4, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29725507/precontoured-clavicular-locking-plate-with-broad-lateral-end-a-newly-designed-plate-for-lateral-third-clavicle-fractures
#6
K C Kapil-Mani, P Acharya, S Arun
Introduction: Various treatment modalities are available but no consensus has been reached for optimal treatment of lateral third clavicle fractures. Precontoured locking plates with broad lateral end for multiple screws fixation is a newly designed plate for lateral third clavicle fractures. The objective of our study was to analyse the functional outcomes as well as complications of this technique in a significant number of cases with long follow-up duration. Materials and Methods: Forty-six patients with distal third clavicle fractures were treated by precontoured clavicular locking plate with broad lateral end...
March 2018: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/29724420/acr-appropriateness-criteria-%C3%A2-shoulder-pain-traumatic
#7
Behrang Amini, Nicholas M Beckmann, Francesca D Beaman, Daniel E Wessell, Stephanie A Bernard, R Carter Cassidy, Gregory J Czuczman, Jennifer L Demertzis, Bennett S Greenspan, Bharti Khurana, Kenneth S Lee, Leon Lenchik, Kambiz Motamedi, Akash Sharma, Eric A Walker, Mark J Kransdorf
Traumatic shoulder pain is pain directly attributed to a traumatic event, either acute or chronic. This pain may be the result of either fracture (the clavicle, scapula, or proximal humerus) or soft-tissue injury (most commonly of the rotator cuff, acromioclavicular ligaments, or labroligamentous complex). Imaging assessment of traumatic shoulder pain begins with conventional radiography and, depending on physical examination findings, will require MRI or MR arthrography for assessment of soft-tissue injuries and CT for delineation of fracture planes...
May 2018: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29709414/contractile-property-measurement-of-the-torn-supraspinatus-muscle-using-real-time-tissue-elastography
#8
Takuma Yuri, Nariyuki Mura, Issei Yuki, Hiromi Fujii, Yoshiro Kiyoshige
HYPOTHESIS: In the restoration of shoulder abduction, decreased contractility of the torn rotator cuff muscle may be a cause of a poor result. The aim of this study was to investigate the relationship between the contractile property of the torn supraspinatus muscle measured by real-time tissue elastography and the Goutallier stage as modified by Fuchs et al. METHODS: The muscular hardness of the torn supraspinatus muscle was measured in 32 patients at rest and during isometric contraction with the shoulder abducted to 60° in the scapular plane...
April 27, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29679207/the-swimmer-s-shoulder-multi-directional-instability
#9
REVIEW
Ivan De Martino, Scott A Rodeo
PURPOSE OF REVIEW: Swimmer's shoulder is the term used to describe the problem of shoulder pain in swimmers. Originally described as supraspinatus tendon impingement under the coracoacromial arch, it is now understood that several different pathologies can cause shoulder pain in competitive swimmers, including subacromial impingement syndrome, overuse and subsequent muscle fatigue, scapular dyskinesis, and laxity and instability. RECENT FINDINGS: Swimmers may develop increased shoulder laxity over time due to repetitive use...
April 20, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29668776/muscle-regeneration-through-therapy-with-estromal-stem-cells-in-injury-of-infraespinhosus-muscle-of-sheep
#10
Aline Grama Moreira Brandão, Angélica Consalter, Juliana da Silva Leite, Helia Zamprogno, Ana Maria Reis Ferreira
PURPOSE: To evaluate the effects of rotator cuff muscle regeneration in sheep and establish an experimental model for the use of autologous stem cells as a treatment option for tendon injuries. METHODS: Infrared muscle tenotomies and Penrose drain implantation were performed on 12 shoulders of six clinically healthy adult sheep. After 60 days, the tendons were submitted to tissue repair, drainage removal, and divided into two groups according to the use of autologous stromal stem cells for treatment...
March 2018: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29657846/reverse-total-shoulder-arthroplasty
#11
Filippo Familiari, Jorge Rojas, Mahmut Nedim Doral, Gazi Huri, Edward G McFarland
Since the introduction of reverse total shoulder arthroplasty (RTSA) in 1987 (in Europe) and 2004 (in the United States), the number of RTSAs performed annually has increased.Although the main indication for RTSA has been rotator cuff tears, indications have expanded to include several shoulder conditions, many of which involve dysfunction of the rotator cuff.RTSA complications have been reported to affect 19% to 68% of patients and include acromial fracture, haematoma, infection, instability, mechanical baseplate failure, neurological injury, periprosthetic fracture and scapular notching...
February 2018: EFORT Open Reviews
https://www.readbyqxmd.com/read/29651893/differences-among-overhand-three-quarter-and-sidearm-pitching-biomechanics-in-professional-baseball-players
#12
Rafael F Escamilla, Jonathan S Slowik, Alek Z Diffendaffer, Glenn S Fleisig
The purpose of this study was to assess biomechanical differences among overhand, three-quarter, and sidearm arm-slot professional baseball pitchers. It was hypothesized that kinematic-and-kinetic differences would be found among the three groups, with sidearm pitchers demonstrating greater movement along the transverse plane, and overhead pitchers demonstrating greater movement along the sagittal plane. Based upon arm-slot-angle at ball-release, 30-overhand, 156-three-quarter, and 21-sidearm pitchers were tested using a 240-Hz-motion-analysis-system, and 37 kinematic-and-kinetic parameters were calculated...
April 13, 2018: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/29629813/summative-report-on-time-out-of-play-for-major-and-minor-league-baseball-an-analysis-of-49-955-injuries-from-2011-through-2016
#13
Christopher L Camp, Joshua S Dines, Jelle P van der List, Stan Conte, Justin Conway, David W Altchek, Struan H Coleman, Andrew D Pearle
BACKGROUND: Recent epidemiologic reports have demonstrated rising injury rates in Major League Baseball (MLB) and Minor League Baseball (MiLB). Although several studies have recently been published on specific injuries, the majority of injuries have not yet been formally studied. PURPOSE: The purpose of this study is to (1) generate a summative analysis of all injuries that occur in MLB and MiLB, (2) identify the 50 most common injuries, and (3) generate focused reports and fact sheets on the characteristics of each of those diagnoses...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29627608/effect-of-wheelchair-stroke-pattern-on-upper-extremity-muscle-fatigue
#14
Brittany Bickelhaupt, Sakiko Oyama, Jonathan Benfield, Keith Burau, Shuko Lee, Michelle Trbovich
BACKGROUND: Shoulder dysfunction is common in persons with spinal cord injury (SCI) with an incidence of up to 63%1 . Dysfunction is a result of muscle imbalances, specifically denervated rotator cuff muscles that are repetitively used during manual wheelchair propulsion. OBJECTIVE: To determine which arm stroke technique, pump (P) or semicircular (SC), is most energy efficient for long periods of propulsion. DESIGN: A small randomized study with repeated-measures observations...
April 5, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29618228/shoulder-and-elbow-injuries-in-soccer-goalkeepers-versus-field-players-in-the-national-collegiate-athletic-association-2009-2010-through-2013-2014
#15
Avi D Goodman, Christine Etzel, Jeremy E Raducha, Brett D Owens
OBJECTIVES: Examination of the incidence of shoulder and elbow injuries in the collegiate soccer player population is limited, as is comparison between goalkeepers and field players. We hypothesized that goalkeepers would have a higher incidence of shoulder and elbow injuries than field players. Furthermore, we sought to determine the incidence of shoulder and elbow injuries among National Collegiate Athletic Association (NCAA) soccer players, and to determine injury risk factors. METHODS: The NCAA Injury Surveillance Program database was analyzed for injuries to NCAA men's and women's soccer players during the 2009-2010 through 2013-2014 academic years...
April 19, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29613929/long-term-outcomes-of-glenohumeral-arthrodesis
#16
Eric R Wagner, Richard McLaughlin, Shumaila Sarfani, Robert H Cofield, John W Sperling, Joaquin Sanchez-Sotelo, Bassem T Elhassan
BACKGROUND: Glenohumeral arthrodesis is associated with a high rate of complications. Although patients experience reasonable pain relief and shoulder stability, they experience marked limitations in their upper-extremity function. The purpose of this study was to examine the clinical outcomes of glenohumeral arthrodesis. METHODS: Twenty-nine patients with 29 affected shoulders underwent primary glenohumeral arthrodesis between 1992 and 2009. Surgical indications included rotator cuff arthropathy and pseudoparalysis (n = 7), neurologic injuries (n = 12), chronic infection (n = 3), recurrent dislocations (n = 3), and proximal humeral or shoulder girdle tumors (n = 4)...
April 4, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29578869/orthopedic-injuries-in-professional-surfers-a-retrospective-study-at-a-single-orthopedic-center
#17
Eric Hohn, Sean Robinson, Jarrad Merriman, Robin Parrish, Warren Kramer
BACKGROUND: Literature regarding surfing injuries is scarce and most studies report a high number of minor injuries. Recent literature suggests that musculoskeletal injuries are more common than previously reported. In the mid 2000s, competitive surfing has seen an increase in aerial maneuvers, as they have become more highly rewarded by the judging panel, which may be contributing to a change in injury patterns. Our goal was to evaluate orthopedic injuries in professional surfers. HYPOTHESIS: Orthopedic injuries in professional surfers are diverse and have evolved with skill and technology...
March 23, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29543510/subacromial-decompression-yields-a-better-clinical-outcome-than-therapy-alone-a-prospective-randomized-study-of-patients-with-a-minimum-10-year-follow-up
#18
Stefanos Farfaras, Ninni Sernert, Lars Rostgard Christensen, Erling K Hallström, Jüri-Toomas Kartus
BACKGROUND: The long-term outcome after the treatment of subacromial impingement syndrome (SAIS) with either nonsurgical or surgical methods has not been thoroughly investigated. Hypothesis/Purpose: The purpose was to evaluate the long-term clinical outcome and the presence of rotator cuff injuries and osteoarthritis (OA) after the surgical and nonsurgical treatment of SAIS. The hypothesis was that, at a minimum 10 years after the initial treatment, patients who had undergone acromioplasty would have a better clinical outcome and run a lower risk of developing rotator cuff ruptures and OA as compared with those treated with physical therapy...
May 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29538092/a-novel-treatment-for-a-rare-injury-pediatric-massive-intrasubstance-rotator-cuff-and-periscapular-muscle-tears-treated-with-a-custom-brace-a-case-report
#19
Molly K Lewis, Omar Ramos-Williams, Hasan M Syed, Theodore K Gregorius
CASE: A 9-year-old boy sustained intrasubstance tears of the rotator cuff and periscapular muscles due to a fall, resulting in scapular winging and severely decreased shoulder range of motion. Treatment consisted of a modified thoracolumbosacral orthosis (TLSO) with a shoulder immobilizer attachment (to reduce the scapula to the thoracic wall and hold the arm in 10° of abduction). The brace was worn for 8 weeks. The patient recovered full, pain-free shoulder function and range of motion, and returned to high-level athletics...
January 2018: JBJS Case Connector
https://www.readbyqxmd.com/read/29525201/glenohumeral-joint-translation-and-muscle-activity-in-patients-with-symptomatic-rotator-cuff-pathology-an-ultrasonographic-and-electromyographic-study-with-age-matched-controls
#20
Sangeeta Rathi, Nicholas F Taylor, Brendan Soo, Rodney A Green
OBJECTIVES: To determine whether patients with symptomatic rotator cuff pathology had more glenohumeral joint translation and different patterns of rotator cuff muscle activity compared to controls. DESIGN: Repeated measurements of glenohumeral translation and muscle activity in two positions and six testing conditions in two groups. METHODS: Twenty participants with a symptomatic and diagnosed rotator cuff tear and 20 age, and gender matched controls were included...
March 2, 2018: Journal of Science and Medicine in Sport
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