The AC joint can be sprained, severely sprained, or separated and when separated the tension in the ligaments beneath the clavicle cause the clavicle to stay down and the scapula to ride up.

When an athlete falls on the shoulder and lands on the shoulder or during other traumatic injuries, the AC joint can be injured in a variety of severity such that the ligaments are torn and even ...

uchc.edu Acromioclavicular (AC) joint injuries are more common than sternoclavicular (SC) joint injuries. There is a spectrum of AC joint traumatic injuries that ranges from a ligament sprain to a ...

San Francisco 49ers running back Jordan Mason, the NFL's leading rusher, is believed to have suffered a sprained AC joint that is not considered serious during Thursday night's win at Seattle ...