Acromioclavicular and sternoclavicular joint injuries.

Traumatic injuries of the acromioclavicular and sternoclavicular joints are discussed. Treatment of acromioclavicular trauma is symptomatic, except for type III injuries with marked prominence of the clavicle, for which open reduction and internal fixation are recommended. Sternoclavicular injury with no instability requires only symptomatic treatment; acute dislocations should be reduced.