Passive Compression Test

Passive compression is a clinical test used to assess for superior labral tears by externally rotating the patient's arm and applying passive compression to the shoulder joint to elicit specific symptoms indicative of labral pathology.

A positive O'Brien's test, also known as the active compression test, suggests a labral tear or other pathology in the shoulder joint, particularly if the pain is felt with resisted forward flexion and internal rotation but not external rotation.

The active compression test, also known as O'Brien's test, is a clinical examination maneuver used to assess for superior labral tears by evaluating pain and weakness during resisted forward flexion and internal rotation of the shoulder joint.