Biceps pulley injury Bennett type II

Case contributed by Dr Ivan Turkalj

Presentation

A male, jiu jitsu athlete complaining of painful snapping shoulder after he was injured at training, was referred for MR arthrography.

Patient Data

Age: 23
Gender: Male
MRI

Direct MR arthrography of the shoulder

A tear of the coracohumeral ligament is evident.

No evidence of injuries to rotator cuff tendons. 

Glenoid labrum is intact.

Glenohumeral and acromioclavicular joint spaces are preserved.  

MRI

Annotated images

Note retracted thorn coracohumeral ligament (arrow).

Case Discussion

Findings are consistent with the biceps pulley injury type II according to Bennett's classification, which explains snapping sensation of the patient while rising his arm that is probably due to tendon instability of the long head of the biceps muscle.  

This case illustrates how subtle findings of injury of the biceps pulley could be and emphasise the importance of direct MR arthrography in its depiction.

 

 

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Case information

rID: 41860
Case created: 23rd Dec 2015
Last edited: 24th Dec 2015
Inclusion in quiz mode: Included

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