ALPSA lesion

Case contributed by Dr Ahmed Abdrabou


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

Patient Data

Age: 27 years old
Gender: Male

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.

PlayAdd to Share

Case information

rID: 25321
Published: 19th Oct 2013
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.