Perthes and reverse Bankart lesions

Case contributed by Dr Mohammad Eisa


Recurrent shoulder dislocations

Patient Data

Age: 20 years
Gender: Male

Avulsion of the anterior glenoid labrum which remains attached to the scapular periosteum. The posterior glenoid labrum is detached from the glenoid and seen at the posterior joint space. Depressed fracture of the posterolateral aspect of the humeral head with surrounding bone marrow edema.

Mild joint effusion is also noted which extends around the long head of biceps tendon.

The rotator cuff muscles are intact.

Case Discussion

Unusually this patient has both Perthes and reverse Bankart lesions.

Anterior shoulder dislocation accounts for the vast majority of shoulder dislocations and usually results from forced abduction, external location and extension. Bankart and Hill Sachs lesions are usually associated with anterior dislocation. Perthes lesion occurs when the anterior inferior labrum is avulsed from the glenoid but still attached to the scapular periosteum, and is also seen with anterior glenohumeral injuries. Reverse Bankart lesion is associated with posterior dislocation. 

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Case information

rID: 75412
Published: 2nd Apr 2020
Last edited: 2nd Apr 2020
Inclusion in quiz mode: Included
Excluded from licensing
Institution: Dar Al Fouad Hospital (In collaboration with Cleveland Clinic)

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