Document Detail


Intracapsular origin of the long head of the biceps tendon with glenoid avulsion of the glenohumeral ligaments.
MedLine Citation:
PMID:  22049965     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
An 18-year-old woman presented with a history of recurrent glenohumeral dislocations involving her right dominant shoulder. Physical examination suggested physiologic hyperlaxity and anterior instability. Magnetic resonance arthrography demonstrated an anomalous intracapsular origin of the long head of the biceps tendon (LHBT), with normal-appearing LHBT in the intertubercular groove. Diagnostic arthroscopy confirmed the absence of the LHBT attachment on the superior labrum. Instead, the LHBT originated from the capsule of the shoulder joint. Diagnostic arthroscopy also revealed glenoid avulsion of the glenohumeral ligaments (GAGL) lesion as a tear in the anterior-inferior capsule near its insertion on the glenoid and labrum. An arthroscopic anterior capsulolabral repair was performed with rotator interval closure by imbrication of superior and middle glenohumeral ligaments. A retrospective review of the magnetic resonance arthrogram identified irregularity and interposition of contrast between the capsule and the anterior-inferior labrum that was reproduced in the abduction-external rotation view corresponding with the GAGL lesion seen at arthroscopy. At 12 months postoperatively, the patient demonstrated full range of motion and no signs of instability. This case report helps to raise awareness about 2 rare shoulder lesions: the anomalous origin of LHBT and the GAGL lesion. Diagnosing such lesions on preoperative magnetic resonance imaging may aid in operative planning and avoid unexpected intraoperative findings.
Authors:
Shital N Parikh; Nicolas Bonnaig; Andrew Zbojniewicz
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Publication Detail:
Type:  Journal Article     Date:  2011-11-09
Journal Detail:
Title:  Orthopedics     Volume:  34     ISSN:  1938-2367     ISO Abbreviation:  Orthopedics     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7806107     Medline TA:  Orthopedics     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e781-4     Citation Subset:  IM    
Copyright Information:
Copyright 2011, SLACK Incorporated.
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