Purpose of Anterior release or surprise test (anterior glenohumeral instability): To detect an occult anterior instability of the shoulder joint (1). Patient position: Supine lying with the affected shoulder over the edge of the examination table. Examiner position: Stand facing the patient’s affected side. Procedure: Abduct the patient’s arm up to 90 degrees while placing a posteriorly directed force on the patient’s humeral head using … Continue reading Anterior Release or Surprise Test