the Acromioclavicular joint (A/C joint) injuries are common in contact sports like rugby and in sports where falls on the shoulder are common. The A/C joint is the joint that joins your collar bone to the shoulder blade at the top of the shoulder. In severe A/C joint injuires a step deformity is produced. In this situation the ligaments that hold the joint together are torn resulting in a dropping of the top of the shoulder blade relative to the collar bone. A/C joint injuries rarely require surgery and normally heal well with physiotherapy mangement. The goal of a physiotherapy programme in A/C joint injuries is to restore full pain free range of motion and control of the muscles of the shoulder as quickly as possible.