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https://www.readbyqxmd.com/read/29338908/relationship-between-neuropathy-proximal-to-the-suprascapular-nerve-and-rotator-cuff-tear-in-a-rodent-model
#1
Yasuhito Sasaki, Nobuyasu Ochiai, Eiko Hashimoto, Yu Sasaki, Takeshi Yamaguchi, Takehiro Kijima, Koji Akimoto, Seiji Ohtori, Kazuhisa Takahashi
BACKGROUND: Rotator cuff tears are believed to coexist with cervical spine lesions. In cases of preexisting neuropathy, such as cervical spine lesions, fatty degeneration has likely already occurred due to the neuropathy. In these cases, rotator cuff tear is thought to occur easily because of preexisting extensive fatty degeneration and degeneration of the tendons due to neuropathy. This study aimed to evaluate the effects of paralysis due to neuropathy proximal to the suprascapular nerve on the supraspinatus and infraspinatus tendons using a rat model of brachial plexus paralysis...
January 12, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29337026/effect-of-recombinant-human-growth-hormone-on-rotator-cuff-healing-after-arthroscopic-repair-preliminary-result-of-a-multicenter-prospective-randomized-open-label-blinded-end-point-clinical-exploratory-trial
#2
Joo Han Oh, Seok Won Chung, Kyung-Soo Oh, Jae Chul Yoo, Wonhee Jee, Jung-Ah Choi, Yang-Soo Kim, Jin-Young Park
BACKGROUND: This study evaluated the effect of systemic injection of recombinant human growth hormone (rhGH) on outcomes after arthroscopic rotator cuff repair. METHODS: This multicenter, prospective, randomized, comparative trial, randomized patients who underwent arthroscopic repair of large-sized rotator cuff tears into 3 groups: rhGH 4 mg group (n = 26), rhGH 8 mg group (n = 24) , and control group (n = 26). Sustained release rhGH was injected subcutaneously once weekly for 3 months postoperatively...
January 11, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29332181/management-of-rotator-cuff-injuries-in-the-elite-athlete
#3
REVIEW
Leigh J Weiss, Dean Wang, Michael Hendel, Philip Buzzerio, Scott A Rodeo
PURPOSE OF REVIEW: Rotator cuff injuries are a common cause of pain and dysfunction for the elite athlete and can result in time loss from participation. This review highlights the current management of these injuries. RECENT FINDINGS: Conservative management of rotator cuff injuries continues to be the "gold standard" in the elite athlete. This includes a comprehensive rehabilitation program, anti-inflammatories, and corticosteroid injections. Newer treatment techniques such as intramuscular dry needling and the use of biologics such as platelet-rich plasma and stem cells demonstrate early promising results; however, these modalities require further investigation to determine their effectiveness...
January 13, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29330670/treatment-of-partial-thickness-rotator-cuff-tears-in-overhead-athletes
#4
REVIEW
Joseph N Liu, Grant H Garcia, Anirudh K Gowd, Brandon C Cabarcas, Michael D Charles, Anthony A Romeo, Nikhil N Verma
PURPOSE OF REVIEW: To review the etiology, classification, presentation, evaluation, treatment strategy, and outcomes in overhead athletes with partial thickness rotator cuff tears. RECENT FINDINGS: Despite advances in surgical repair techniques, return to play following surgical repair of partial rotator cuff tears remains modest at best. Overhead athletes may be particularly prone to rotator cuff pathology due to the supraphysiological strains within the tendon during the throwing motion, as well as mechanical stress with contact between the undersurface of the rotator cuff and the glenoid...
January 13, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29329904/assembly-maturation-and-degradation-of-the-supraspinatus-enthesis
#5
REVIEW
Peter T Jensen, Kate L Lambertsen, Lars H Frich
The development of the rotator cuff enthesis is still poorly understood. The processes in the early and late developmental steps are gradually elucidated, but it is still unclear how cell activities are coordinated during development and maturation of the structured enthesis. This review summarizes current knowledge about development and age-related degradation of the supraspinatus enthesis. Healing and repair of an injured and degenerated supraspinatus enthesis also remain a challenge, as the original graded transitional tissue of the fibrocartilaginous insertion is not re-created after the tendon is surgically reattached to bone...
January 10, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29329890/pain-motion-and-function-comparison-of-two-exercise-protocols-for-the-rotator-cuff-and-scapular-stabilizers-in-patients-with-subacromial-syndrome
#6
Eva Vallés-Carrascosa, Tomás Gallego-Izquierdo, José Jesús Jiménez-Rejano, Gustavo Plaza-Manzano, Daniel Pecos-Martín, Fidel Hita-Contreras, Alexander Achalandabaso Ochoa
STUDY DESIGN: Randomized clinical trial. INTRODUCTION: Eccentric exercise (EE) was shown to be an effective treatment in tendinopathies. However, the evidence of its effectiveness in subacromial syndrome (SS) is scarce. Moreover, consensus has not been reached on whether best results for SS are obtained by means of EE with or without pain. PURPOSE OF THE STUDY: The purpose of this is to compare the effect on pain, active range of motion (AROM), and shoulder function of an exercise protocol performed with pain <40 mm Visual Analog Scale (VAS) and without pain, in patients with SS...
January 9, 2018: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/29328887/macroscopic-rotator-cuff-tendinopathy-and-histopathology-do-not-predict-repair-outcomes-of-rotator-cuff-tears
#7
Paul M Sethi, Chirag D Sheth, Leo Pauzenberger, Mary Beth R McCarthy, Mark P Cote, Emma Soneson, Seth Miller, Augustus D Mazzocca
BACKGROUND: Numerous studies have identified factors that may affect the chances of rotator cuff healing after surgery. Intraoperative tendon quality may be used to predict healing and to determine type of repair and/or consideration of augmentation. There are no data that correlate how gross tendon morphology and degree of tendinopathy affect patient outcome or postoperative tendon healing. Purpose/Hypothesis: The purposes of this study were to (1) compare the gross appearance of the tendon edge during arthroscopic rotator cuff repair with its histological degree of tendinopathy and (2) determine if gross appearance correlated with postoperative repair integrity...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29327176/how-to-use-a-graft-in-irreparable-rotator-cuff-tears-a-literature-review-update-of-interposition-and-superior-capsule-reconstruction-techniques
#8
REVIEW
Kevin C Wall, Alison P Toth, Grant E Garrigues
PURPOSE OF REVIEW: To introduce the challenges in addressing irreparable rotator cuff tears and examine the surgical options, specifically interposition grafting and superior capsule reconstruction. RECENT FINDINGS: Interposition grafting of rotator cuff tears shows promising results in reducing pain and improving function postoperatively and one study demonstrated that it performs significantly better than partial repair alone. Superior capsule reconstruction has become popular rapidly, but given the novelty of the procedure, there is currently a paucity of outcomes data to review...
January 11, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29325703/the-prevalence-and-morphometric-analysis-of-ossified-superior-transverse-scapular-ligaments-in-patients-with-rotator-cuff-tears
#9
Jung Youn Kim, Yong Girl Rhee
BACKGROUND: The prevalence of ossified superior transverse scapular ligaments (OSTSLs) in rotator cuff tears (RCTs) has not yet been determined. The purposes of this study were to evaluate the prevalence of OSTSLs in RCTs and to investigate the correlation between OSTSL morphology and supraspinatus muscle atrophy. METHODS: We analyzed a total of 213 patients with RCTs for whom 3-dimensional (3D) computed tomography (CT) and magnetic resonance imaging were performed prior to arthroscopic procedures...
January 8, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29325577/dynamic-kinematics-of-the-glenohumeral-joint-in-shoulders-with-rotator-cuff-tears
#10
Naoya Kozono, Takamitsu Okada, Naohide Takeuchi, Satoshi Hamai, Hidehiko Higaki, Takeshi Shimoto, Satoru Ikebe, Hirotaka Gondo, Yoshitaka Nakanishi, Takahiro Senju, Yasuharu Nakashima
BACKGROUND: No clear trend has emerged from the literature regarding three-dimensional (3D) translations of the humerus relative to the scapula in shoulders with rotator cuff tears (RCTs). The purpose of this study was to evaluate the kinematics of RCT shoulders using 3D-to-two-dimensional (2D) model-to-image registration techniques. METHODS: Dynamic glenohumeral kinematics during scapular plane abduction and axial rotation were analyzed in 11 RCT patients and 10 healthy control subjects...
January 11, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29323925/the-responsiveness-of-patient-reported-outcome-tools-in-shoulder-surgery-is-dependent-on-the-underlying-pathological-condition
#11
R Zackary Unger, Jeremy M Burnham, Lee Gammon, Chaitu S Malempati, Cale A Jacobs, Eric C Makhni
BACKGROUND: Given the high number of available patient-reported outcome (PRO) tools for patients undergoing shoulder surgery, comparative information is necessary to determine the most relevant forms to incorporate into clinical practice. PURPOSE: To determine the utilization and responsiveness of common PRO tools in studies involving patients undergoing arthroscopic rotator cuff repair or operative management of glenohumeral instability. STUDY DESIGN: Systematic review...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29319733/biomechanic-and-histologic-analysis-of-fibroblastic-effects-of-tendon-to-bone-healing-by-transforming-growth-factor-%C3%AE-1-tgf-%C3%AE-1-in-rotator-cuff-tears
#12
Chong Zhang, Yu-Jie Liu
PURPOSE: To evaluate the effect of transforming growth factor β1 (TGF-β1) on tendon-to-bone reconstruction of rotator cuff tears. METHODS: Seventy-two rat supraspinatus tendons were transected and reconstructed in situ. At 8 and 16 weeks, specimens of three groups; that is control, L-dose (low dose), and H-dose (high dose) were harvested and underwent a biomechanical test to evaluate the maximum load and stiffness values. Histology sections of the tendon-to-bone interface were identified by hematoxylin-eosin or Masson trichrome stain...
December 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29319655/superior-capsular-reconstruction-with-a-partial-rotator-cuff-repair-a-case-report
#13
John M Tokish, Amit Momaya, Troy Roberson
CASE: Chronic massive irreparable rotator cuff tears remain challenging to treat. We present the case of a 70-year-old active and healthy woman who presented with 6 months of worsening shoulder pain and function; she had experienced considerable deterioration over the past 2 months. Nonoperative management of the massive rotator cuff tear was not successful. Superior capsule reconstruction (SCR) was performed with a partial rotator cuff repair. CONCLUSION: SCR is an exciting advancement for the chronic massive irreparable rotator cuff tear, one of the more challenging problems encountered by shoulder surgeons...
January 10, 2018: JBJS Case Connector
https://www.readbyqxmd.com/read/29318428/how-when-why-in-magnetic-resonance-arthrography-an-international-survey-by-the-european-society-of-musculoskeletal-radiology-essr
#14
Luca Maria Sconfienza, Domenico Albano, Carmelo Messina, Enzo Silvestri, Alberto Stefano Tagliafico
OBJECTIVES: To perform an online survey about the use of magnetic resonance arthrography (MRA) in clinical practice. METHODS: We administered an online survey to all 1,550 members of the European Society of Musculoskeletal Radiology (ESSR) about MRA asking ten different questions. Subgroup analysis was performed between general and orthopaedic hospitals using χ2 and Mann-Whitney U statistics. RESULTS: One-hundred forty-eight answers were included (148/1,550, 9...
January 9, 2018: European Radiology
https://www.readbyqxmd.com/read/29318082/a-review-of-a-workers-compensation-database-2003-to-2013-patient-factors-influencing-return-to-work-and-cumulative-financial-claims-after-rotator-cuff-repair-in-geriatric-workers-compensation-cases
#15
Edward Shields, Caroline Thirukumaran, Katia Noyes, Ilya Voloshin
Background: Workers' compensation status is associated with poor outcomes after rotator cuff repair surgery. The purpose of this study was to analyze a database of geriatric workers' compensation patients after surgical repair of the rotator cuff and identify both medical and nonmedical patient factors that influence the time it takes for them to return to work at full duty, including a comparison of arthroscopic and open techniques. Methods: An all workers' compensation database was queried for rotator cuff claims that were surgically managed using arthroscopic, open, or both approaches from 2003 to 2013 in patients aged ≥60...
December 2017: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/29317260/growth-factor-delivery-strategies-for-rotator-cuff-repair-and-regeneration
#16
Anupama Prabhath, Varadraj N Vernekar, Enid Sanchez, Cato T Laurencin
The high incidence of degenerative tears and prevalence of retears (20-95%) after surgical repair makes rotator cuff injuries a significant health problem. This high retear rate is attributed to the failure of the repaired tissue to regenerate the native tendon-to-bone insertion (enthesis). Biological augmentation of surgical repair such as autografts, allografts, and xenografts are confounded by donor site morbidity, immunogenicity, and disease transmission, respectively. In contrast, these risks may be alleviated via growth factor therapy, which can actively influence the healing environment to promote functional repair...
January 6, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29314867/location-of-rotator-cuff-tear-initiation-a-magnetic-resonance-imaging-study-of-191-shoulders
#17
Jeung Yeol Jeong, Seul Ki Min, Keun Min Park, Yong Bok Park, Kwang Joon Han, Jae Chul Yoo
BACKGROUND: Degenerative rotator cuff tears (RCTs) are generally thought to originate at the anterior margin of the supraspinatus tendon. However, a recent ultrasonography study suggested that they might originate more posteriorly than originally thought, perhaps even from the isolated infraspinatus (ISP) tendon, and propagate toward the anterior supraspinatus. Hypothesis/Purpose: It was hypothesized that this finding could be reproduced with magnetic resonance imaging (MRI). The purpose was to determine the most common location of degenerative RCTs by using 3-dimensional multiplanar MRI reconstruction...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29311489/retained-myogenic-potency-of-human-satellite-cells-from-torn-rotator-cuff-muscles-despite-fatty-infiltration
#18
Masashi Koide, Yoshihiro Hagiwara, Masahiro Tsuchiya, Makoto Kanzaki, Hiroyasu Hatakeyama, Yukinori Tanaka, Takashi Minowa, Taro Takemura, Akira Ando, Takuya Sekiguchi, Yutaka Yabe, Eiji Itoi
Rotator cuff tears (RCTs) are a common shoulder problem in the elderly that can lead to both muscle atrophy and fatty infiltration due to less physical load. Satellite cells, quiescent cells under the basal lamina of skeletal muscle fibers, play a major role in muscle regeneration. However, the myogenic potency of human satellite cells in muscles with fatty infiltration is unclear due to the difficulty in isolating from small samples, and the mechanism of the progression of fatty infiltration has not been elucidated...
2018: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29306754/quantification-of-upper-limb-electromyographic-measures-and-dysfunction-of-breast-cancer-survivors-during-performance-of-functional-dynamic-tasks
#19
Rebecca L Brookham, Alan C Cudlip, Clark R Dickerson
BACKGROUND: Upper limb morbidities within the breast cancer population can interfere with completing daily life activities. Current knowledge of upper limb capabilities is limited; previous increases in muscle activation on the affected cancer side suggest this population works at a higher fraction of their capability. The purposes of this study were to describe upper limb capabilities and dysfunction of breast cancer survivors through muscle activation monitoring via surface electromyography and muscle-specific strength tests during functional tasks...
December 29, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29306551/effects-of-tear-size-and-location-on-predictions-of-supraspinatus-tear-propagation
#20
R Matthew Miller, James Thunes, Volker Musahl, Spandan Maiti, Richard E Debski
Rotator cuff tears remain a significant clinical problem with a high incidence rate and severe clinical burden. Previous computational models developed to study rotator cuff tears have not modeled tissue damage and tear propagation. The objective of this study was to predict tear propagation for various combinations of tear size and location using an experimentally validated finite element model of supraspinatus tendon. It was hypothesized that larger rotator cuff tears propagate at lower loads than smaller tears, and that posterior tears require higher loads to propagate than anterior tears...
December 15, 2017: Journal of Biomechanics
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