Acromioclavicular joint injury - type 2
Fell off horse and landed on elbow. Pain and disability to shoulder.
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AC joint space and CC distances are widened. The distal clavicle is displaced superiorly compared to the acromion. Overlying soft tissue swelling. No fracture. Glenohumeral joint is normal.
Rockwood type II acromioclavicular joint injury.
2 case question available
Classification of AC joint injuries can be a useful guide for treatment as certain types will often require operative management while others are typically managed non-operatively.