Acromioclavicular joint (Figure 5a) and GHJ pathology were the most common x-ray findings (both 17%) and calcification involving the rotator cuff was reported in 13% of subjects (Figure 5b).

AC joint injuries occur to cowboys flying off of bulls in bull riding events and landing on the shoulder and also to those involved in motor vehicle accidents who impact the metal insides of a car.

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 ...