Those connectors can tear, however, especially when the shoulder takes a direct hit. Ligament damage allows the collarbone to come bulging off, or separating, from the shoulder. This injury should not be confused with a dislocated shoulder, where the top of the upper arm pops out of its socket. In most instances, rest and wearing an arm sling is enough to allow the injury to heal. Soon after the injury happens, ice is often used to control swelling and ease pain.
Patients then undergo exercises to regain the motion in their shoulder.
In severe cases, surgery is needed to repair the damaged ligaments to put the joint back together again. Doctors sometimes will take X-rays of a patient holding a small weight, so the separation can be a bit easier to see as the muscles are stretched. On Oct. 24, the Bears announced that McNown didn't injure his rotator cuff. The rotator cuff is formed by a group of tendons and muscles that work to hold the shoulder together. The upper- arm bone is shaped like a ball and is larger than the socket it fits against.