Doctors that specialize in this area:

Acromio-Clavicular (AC) Sprain

One of the most common impact injuries to the shoulder is an acromio-clavicular (AC) sprain, or separation. The collarbone and “roof” bone of the scapula (acromion process) collide, often damaging the surrounding ligaments.  Usually the injury can be treated conservatively with a period of protected activity. If the deformity of the joint is severe enough, or if the two bones over-ride each other painfully during activites, operative stabilization of the joint may be required.