Anterior glenohumeral instability - Hill-Sachs defect and possible Perthes lesion

Case contributed by Bahman Rasuli
Diagnosis almost certain


Recurrent anterior shoulder dislocations.

Patient Data

Age: 45 years
Gender: Female

A bony defect of the posterolateral aspect of the humeral head is consistent with a Hill-Sachs defect,

Deficient anteroinferior glenoid labrum with labral detachment and possible periosteal stripping with medial displacement. This may represent a Perthes lesion. 

Subcoracoid bursa measuring about 10 x 25 mm.

Acromion type II.

Case Discussion

Hill-Sachs defect with a deficiency of the anteroinferior glenoid labrum, which is possibly a Perthes lesion but without effusion or direct arthrography, it is difficult to be certain. 

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