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Supraspinatus rupture at the musclotendinous junction: an uncommonly recognized phenomenon.
MedLine Citation:
PMID:  21398147     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: The majority of rotator cuff lesions involving the supraspinatus occur at or near the level of bone-tendon interface. We present a series of supraspinatus injuries at the musculotendinous junction. METHODS: Between October 2002 and December 2009, we prospectively evaluated all patients presenting with an injury of the supraspinatus at the musculotendinous junction. RESULTS: Five patients (1 female and 4 males) were identified. Three patients had a clear history of trauma. All patients presented acutely with pain and muscular edema on T2 magnetic resonance imaging (MRI) sequences. Lesions were characterized as stretch injuries in 2 cases and complete rupture at the level of the musculotendinous junction in 3 cases. Electrodiagnostic studies were normal in all cases. All patients were treated nonoperatively. On clinical and radiological examination at an average of 24 ± 10 months (range, 10-38), 1 patient had complete clinical and radiological resolution, 1 improved, and 3 who complained of loss of function demonstrated severe fatty infiltration on MRI. CONCLUSION: Musculotendinous rupture of the supraspinatus is an unusual lesion of the rotator cuff. With incomplete injuries, recovery can be anticipated with nonsurgical management. However, in the case of a complete rupture with muscle retraction, nonoperative management leads to unsatisfactory outcomes.
Authors:
Alexandre Lädermann; Frank Kolo Christophe; Patrick J Denard; Gilles Walch
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-12
Journal Detail:
Title:  Journal of shoulder and elbow surgery / American Shoulder and Elbow Surgeons ... [et al.]     Volume:  -     ISSN:  1532-6500     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9206499     Medline TA:  J Shoulder Elbow Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Mosby, Inc. All rights reserved.
Affiliation:
Department of Surgery, Division of Orthopaedics and Trauma Surgery, Geneva University Hospitals, Geneva, Switzerland.
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