ALPSA lesion

Case contributed by Dr Ahmed Abd Rabou

Presentation

Shoulder pain and limited movement following closed reduction of shoulder dislocation 4 days ago.

Patient Data

Age: 27 years old
Gender: Male
MRI

Acute edema of the posterolateral humeral head consistent with bony Hill Sachs lesion.

There is medial displacement of the inferior glenohumeral labroligamentous attachment to the glenoid with intact scapular periosteum.

Annotated image

Red arrows refer to the displaced IGHL complex

Case Discussion

Anterior labroligamentous periosteal sleeve avulsion (ALPSA) lesion occurs following anterior shoulder dislocation. There is medial displacement and inferior shift of the IGHL complex with intact scapular periosteum. Associated joint effusion, bone edema and HIll Sachs injuries may be seen.

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Case information

rID: 25321
Case created: 19th Oct 2013
Last edited: 2nd Mar 2016
Inclusion in quiz mode: Included

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