The distal end of the clavicle may protrude slightly upward. Stress radiograph of the AC joint with the patient holding a 10-pound weight in both hands reveals widening of the joint. Complete tear of the acromioclavicular and coracoclavicular ligaments with pain on any attempt at abduction. Radiographs show superior displacement of the clavicle and complete dislocation of the joint with weights. Conservative treatment with a sling is appropriate, provided that the patient understands that permanent deformity may result.
Patients usually return to normal function.
Glenohumeral Dislocations Clinical features. The usual mechanism is forced abduction and external rotation. Patients complain of severe pain and usually hold the arm in tightly against their body. The shoulder appears flattened laterally and prominent anteriorly. The examiner must check associated injuries, including proximal humeral fractures, avulsion of the rotator cuff, and injuries to the adjacent neurovascular structures.