Recurrent anterior shoulder instability

Case contributed by Bahman Rasuli


Right shoulder recurrent anterior dislocations.

Patient Data

Age: 50 years
Gender: Male
  • joint effusion
  • anterior labroligamentous periosteal sleeve avulsion (ALPSA) lesion
  • posterolateral impression of the humeral head with adjacent bone edema, indicating a Hill-Sacs lesion
  • abnormal intrasubstance increased fluid signal along with supraspinatus tendon bursal side fibers related to tendinosis 
  • subacromion - subdeltoid bursa
  • fluid signal around the long head of the biceps tendon due to tenosynovitis
  • low lying type I acromion

Case Discussion

Chronic anterior shoulder dislocations with ALPSA and Hill-sacs lesions. Almost all ALPSA lesions happened in the shoulders with chronic dislocations.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

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

 Thank you for updating your details.