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Rotator cuff tear

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https://www.readbyqxmd.com/read/28319431/evaluation-of-the-risk-factors-for-a-rotator-cuff-retear-after-repair-surgery
#1
Yeong Seok Lee, Jeung Yeol Jeong, Chan-Deok Park, Seung Gyoon Kang, Jae Chul Yoo
BACKGROUND: A retear is a significant clinical problem after rotator cuff repair. However, no study has evaluated the retear rate with regard to the extent of footprint coverage. PURPOSE: To evaluate the preoperative and intraoperative factors for a retear after rotator cuff repair, and to confirm the relationship with the extent of footprint coverage. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Data were retrospectively collected from 693 patients who underwent arthroscopic rotator cuff repair between January 2006 and December 2014...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28319248/cyclic-tensile-strain-enhances-human-mesenchymal-stem-cell-smad-2-3-activation-and-tenogenic-differentiation-in-anisotropic-collagen-glycosaminoglycan-scaffolds
#2
W G Grier, A S Moy, B A Harley
Stem cell research arose from the need to explore new therapeutic possibilities for intractable and lethal diseases. Although musculoskeletal disorders are basically nonlethal, their high prevalence and relative ease of performing clinical trials have facilitated the clinical application of stem cells in this field. However, few reliable clinical studies have been published, despite the plethora of in vitro and preclinical studies in stem cell research for regenerative medicine in the musculoskeletal system...
March 20, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28318302/isolated-subscapularis-repair-in-irreparable-posterosuperior-massive-rotator-cuff-tears-involving-the-subscapularis-tendon
#3
Sung-Jae Kim, Yun-Rak Choi, Min Jung, Won-Yong Lee, Yong-Min Chun
BACKGROUND: No previous study has examined whether isolated subscapularis tendon repair in irreparable posterosuperior massive rotator tears involving the subscapularis tendon in relatively young patients without arthritis can yield satisfactory outcomes. HYPOTHESIS: We hypothesized that this procedure would produce favorable outcomes in patients who might otherwise be candidates for reverse arthroplasty. STUDY DESIGN: Case series; Level of evidence, 4...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28304118/causes-of-pain-and-loss-of-function-in-rotator-cuff-disease-analysis-of-1383-cases
#4
Anthony Maher, Warren Leigh, Matt Brick, Simon Young, Michael Caughey
BACKGROUND: The New Zealand Rotator Cuff Registry is a multicentre, nationwide prospective study of rotator cuff repairs established in March 2009. METHODS: A total of 1383 rotator cuff repairs were included in this study, all with completed baseline Flex-SF scores, pain scores and standardized operative forms. RESULTS: Increasing tear size and tear retraction, over 4 cm, were associated with decreasing Flex-SF scores but not pain. Tear area (a composite of tear size and retraction) is increased with advancing age, male gender and a traumatic history but not with smoking...
March 17, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28298061/arthroscopic-repair-of-anterosuperior-massive-rotator-cuff-tears
#5
Sung-Jae Kim, Yun-Rak Choi, Min Jung, Wonyong Lee, Yong-Min Chun
BACKGROUND: The purpose of this study was to investigate clinical outcomes and structural integrity after arthroscopic repair of anterosuperior massive rotator cuff tears (RCTs) and to compare clinical outcomes between healed and retear groups. HYPOTHESIS: The authors hypothesized that although both groups would exhibit improved clinical outcomes compared with their preoperative status, the healed group would have better clinical outcomes than the retear group, and in the retear group, the subscapularis retear subgroup would have inferior outcomes compared with the intact subscapularis repair subgroup...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28296750/comparison-of-clinical-outcomes-in-all-arthroscopic-versus-mini-open-repair-of-rotator-cuff-tears-a-randomized-clinical-trial
#6
Jin Liu, Lin Fan, Yingbo Zhu, Haotong Yu, Tianyang Xu, Guodong Li
BACKGROUND: The aim of the study was to compare the clinical outcomes of patients undergoing all-arthroscopic (AA) or mini-open (MO) rotator cuff repair. METHODS: The present study evaluated 50 patients who had undergone AA repair and 50 patients who had undergone MO repair with a minimum 1-year follow-up. Every patient was asked to complete the Disabilities of the Arm, Shoulder and Hand (DASH) and visual analog scale (VAS) questionnaires. Constant-Murley score (CMS) and active ranges, forward flexion and external rotation, were also evaluated and documented...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28290117/what-influence-does-progression-of-a-nonhealing-rotator-cuff-tear-have-on-shoulder-pain-and-function
#7
Yoon Sang Jeon, Rag Gyu Kim, Sang-Jin Shin
BACKGROUND: There have been numerous reports of clinical outcomes associated with tendon healing after repair that suggest a nonhealed tendon has a negative effect on postoperative clinical outcomes. However, to our knowledge, there has been no report on the relationship between tear size progression of nonhealed tendons and clinical outcomes. QUESTIONS/PURPOSES: (1) Do patients with healed arthroscopic rotator cuff repairs have better outcomes, less pain, and more strength than patients whose repair did not heal? (2) In patients with nonhealed rotator cuff tendons, does tear size progression (increase or decrease) affect outcomes, pain, and strength? (3) Is there continued improvement beyond 6 months in outcomes, pain, and strength; and how do the improvements differ based on whether the tear size has increased or decreased? METHODS: Between May 2008 and December 2012, 647 patients underwent arthroscopic rotator cuff repair for full-thickness tears at our institution...
March 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28288280/early-versus-delayed-motion-after-rotator-cuff-repair
#8
Darby A Houck, Matthew J Kraeutler, Hayden B Schuette, Eric C McCarty, Jonathan T Bravman
BACKGROUND: Previous meta-analyses have been conducted to compare outcomes of early versus delayed motion after rotator cuff repair. PURPOSE: To conduct a systematic review of overlapping meta-analyses comparing early versus delayed motion rehabilitation protocols after rotator cuff repair to determine which meta-analyses provide the best available evidence. STUDY DESIGN: Systematic review. METHODS: A systematic review was performed by searching PubMed and Cochrane Library databases...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28285831/clinical-outcomes-of-arthroscopic-rotator-cuff-repair-correlation-between-the-university-of-california-los-angeles-and-american-shoulder-and-elbow-surgeons-scores
#9
Jorge H Assunção, Eduardo A Malavolta, Mauro E C Gracitelli, Dalton Y Hiraga, Flavio R da Silva, Arnaldo A Ferreira Neto
BACKGROUND: There are more than 40 outcome scores for evaluating shoulder pain and function. Some studies have correlated the results obtained using different scales, but none has compared the results obtained by the University of California, Los Angeles (UCLA) and American Shoulder and Elbow Surgeons (ASES) scores. METHODS: We performed a retrospective study to evaluate patients who underwent arthroscopic rotator cuff repair with 2 years' follow-up. The patients were evaluated by the UCLA and ASES scores preoperatively and at 6, 12, and 24 months after surgery...
March 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28282498/risk-factors-for-revision-surgery-after-superior-labral-anterior-posterior-repair
#10
Samuel A Taylor, Ryan M Degen, Alexander E White, Moira M McCarthy, Lawrence V Gulotta, Stephen J O'Brien, Brian C Werner
BACKGROUND: Data regarding risk factors for revision surgery after superior labral anterior-posterior (SLAP) repair are limited to institutional series. PURPOSE: To define risk factors for revision surgery after SLAP repair among patients in a large national database. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: A national insurance database was queried for patients undergoing arthroscopic SLAP repair (Current Procedural Terminology [CPT] code 29807) for the diagnosis of a SLAP tear...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28273425/can-preoperative-magnetic-resonance-imaging-predict-the-reparability-of-massiverotator-cuff-tears
#11
Jung Youn Kim, Ji Seon Park, Yong Girl Rhee
BACKGROUND: Numerous studies have shown preoperative fatty infiltration of rotator cuff muscles to be strongly negatively correlated with the successful repair of massive rotator cuff tears (RCTs). PURPOSE: To assess the association between factors identified on preoperative magnetic resonance imaging (MRI), especially infraspinatus fatty infiltration, and the reparability of massive RCTs. STUDY DESIGN: Case-control study; Level of evidence, 3...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28272927/muscle-degeneration-associated-with-rotator-cuff-tendon-release-and-or-denervation-in-sheep
#12
Christian Gerber, Dominik C Meyer, Martin Flück, Paola Valdivieso, Brigitte von Rechenberg, Mario C Benn, Karl Wieser
BACKGROUND: The effect of an additional neurological injury (suprascapular nerve traction injury) to a chronically retracted rotator cuff muscle is incompletely understood and warrants clarification. PURPOSE: To investigate the microscopic and macroscopic muscle degeneration patterns caused by tendon release and/or muscle denervation in a sheep rotator cuff model. STUDY DESIGN: Controlled laboratory study. METHODS: Infraspinatus muscle biopsy specimens (for histological analysis) were obtained from 18 Swiss alpine sheep before and 16 weeks after release of the infraspinatus tendon (tenotomy [T] group; n = 6), transection of the suprascapular nerve (neurectomy [N] group; n = 6), or tendon release plus nerve transection (tenotomy + neurectomy [T&N] group; n = 6)...
March 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28272899/longitudinal-long-term-magnetic-resonance-imaging-and-clinical-follow-up-after-single-row-arthroscopic-rotator-cuff-repair
#13
Philipp R Heuberer, Daniel Smolen, Leo Pauzenberger, Fabian Plachel, Sylvia Salem, Brenda Laky, Bernhard Kriegleder, Werner Anderl
BACKGROUND: The number of arthroscopic rotator cuff surgeries is consistently increasing. Although generally considered successful, the reported number of retears after rotator cuff repair is substantial. Short-term clinical outcomes are reported to be rarely impaired by tendon retears, whereas to our knowledge, there is no study documenting long-term clinical outcomes and tendon integrity after arthroscopic rotator cuff repair. PURPOSE: To investigate longitudinal long-term repair integrity and clinical outcomes after arthroscopic rotator cuff reconstruction...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28271082/preliminary-results-of-a-consecutive-series-of-large-massive-rotator-cuff-tears-treated-with-arthroscopic-rotator-cuff-repairs-augmented-with-extracellular-matrix
#14
Paolo Consigliere, Ioannis Polyzois, Tanaya Sarkhel, Rohit Gupta, Ofer Levy, A Ali Narvani
BACKGROUND: Recurrence rate of rotator cuff tears is still high despite the improvements of surgical techniques, materials used and a better knowledge of the healing process of the rotator cuff tendons. Large to massive rotator cuff tears are particularly associated with a high failure rate, especially in elderly. Augmentation of rotator cuff repairs with extracellular matrix or synthetic patches has gained popularity in recent years with the aim of reducing failure. The aim of this study was to investigate the outcome of rotator cuff repairs augmented with denatured extracellular matrix in a series of patients who underwent arthroscopic rotator cuff repair for large to massive tears...
January 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28267370/posterior-decentering-of-the-humeral-head-on-shoulder-mr-arthrography-significant-association-with-posterior-synovial-proliferation
#15
Gabin Yun, Yusuhn Kang, Joong Mo Ahn, Eugene Lee, Joon Woo Lee, Joo Han Oh, Heung Sik Kang
OBJECTIVE: The purpose of this study is to analyze MRI findings associated with posterior decentering of the humeral head on shoulder MR arthrogram. MATERIALS AND METHODS: A total of 255 MR arthrograms were obtained during a 10-month period. MR arthrograms in patients with posterior decentering of the humeral head (n = 33) were reviewed and compared with those of randomly selected control group without posterior decentering (n = 66). MR arthrograms were retrospectively evaluated by two observers for posterior factors (posterior synovial proliferation, posterior capsular thickening, and posterior labral abnormality), rotator cuff factors related to fatty degeneration, glenoid version, and anterior factors (subcoracoid bursa effusion and rotator interval tear)...
March 7, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28266690/lengthening-primary-cilia-enhances-cellular-mechanosensitivity
#16
G-I Im
Stem cell research arose from the need to explore new therapeutic possibilities for intractable and lethal diseases. Although musculoskeletal disorders are basically nonlethal, their high prevalence and relative ease of performing clinical trials have facilitated the clinical application of stem cells in this field. However, few reliable clinical studies have been published, despite the plethora of in vitro and preclinical studies in stem cell research for regenerative medicine in the musculoskeletal system...
February 21, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28261431/outcomes-of-rotator-cuff-repair-in-patients-with-comorbid-disability-in-the-extremities
#17
Joo Han Oh, Woo Kim, Jung Youn Kim, Yong Girl Rhee
BACKGROUND: Rehabilitation and overuse of the shoulder after rotator cuff repair are a concern in patients with comorbid disability in other extremities. Improvement of outcomes can be hampered in this situation. This study was to describe the clinical outcomes of rotator cuff repair in patients with comorbid disability in other extremities. METHODS: In two tertiary institutions, 16 patients with comorbid disability (9 men and 7 women; mean age of 57.1 years [range, 45 to 71 years]; 14 dominant arms; mean follow-up of 18 months [range, 12 to 38 months]) underwent rotator cuff repair...
March 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28261304/the-influence-of-different-footprint-preparation-techniques-on-tissue-regeneration-in-rotator-cuff-repair-in-an-animal-model
#18
Andreas Ficklscherer, Michaela Serr, Thomas Loitsch, Thomas R Niethammer, Matthias Lahner, Matthias F Pietschmann, Peter E Müller
INTRODUCTION: Rotator cuff tears are common diseases of the upper extremity. There are no recommendations to the surgeon on how to prepare the footprint to ensure optimal tendon-to-bone healing. However, biologic augmentation using stem cells and growth factors is considered to encourage the healing process of the tendon. The aim of the study was to investigate the biomechanical and histological outcome of different footprint preparations in rotator cuff repair. MATERIAL AND METHODS: One hundred and eighty-nine Sprague-Dawley rats were randomly assigned to either spongialization, radiofrequency ablation or an untreated control group...
March 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28259350/editorial-commentary-a-bridge-to-nowhere-%C3%A2-do-patches-help-improve-our-outcomes-after-rotator-cuff-surgery
#19
EDITORIAL
Joshua S Dines
Patches have been used in a variety of ways to improve outcomes after repair of large to massive rotator cuff tears. Some authors have advocated using these patch grafts as augmentation, whereas other authors have used them as bridging tissue from the rotator cuff to the tuberosity. A recent study reports a well-written systematic review on healing rates and outcomes of the 2 different graft indications, showing no significant differences in healing. I do think that, equally as important, this study highlights the lack of well-designed studies on the use of patches in rotator cuff surgery...
March 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28256437/the-main-cause-of-instability-after-unconstrained-shoulder-prosthesis-is-soft-tissue-deficiency
#20
Jean Kany, Jijo Jose, Denis Katz, Jean David Werthel, Padmanaban Sekaran, Rajkumar S Amaravathi, Philippe Valenti
BACKGROUND: Instability is one of the major causes of failures in unconstrained anatomic total shoulder arthroplasty (TSA). This study reviewed the instabilities that may occur in an anatomic shoulder platform system to identify its potential predictors. We hypothesized that soft tissue deficiency was the main cause of instability and that the best treatment option would be conversion to a reverse shoulder arthroplasty (RSA). MATERIALS AND METHODS: Between 2003 and 2013, we reviewed 27 patients who experienced postoperative instability, and the overall incidence was 5...
February 27, 2017: Journal of Shoulder and Elbow Surgery
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