Topic summary
Acromioclavicular

Extracted from the Wikipedia article Acromioclavicular joint.
Injury
Acromioclavicular joint dislocation is particularly common in collision sports such as ice hockey, football, Judo, rugby and Aussie rules, and is also a problem for those who participate in swimming, horseback riding, mountain biking, biking, snow skiing and skateboarding. The most common mechanism of injury is a fall on the tip of the shoulder or FOOSH (Fall On OutStretched Hand).