Collision sports, throwing sports and overhead activities which involve overhead and across the body movement of the arm cause injury to ACJ. The ACJ injury which is also known as shoulder separation is one of the most commonly observed shoulder injuries in sports medicine, accounting for 9% of all injuries to the shoulder girdle. The injury which was noted by Hippocrates in the earliest days of medicine yet does not have a definitive non-surgical treatment method. Physical therapy though has proved to be an effective treatment for Grade I-III injuries in a short period while other severe injuries will require longer healing periods.
Acromioclavicular Joint (ACJ) injury
The ACJ is formed at the meeting point of three bones which include: The shoulder blade (Scapula), the collarbone (clavicle) and the arm bone (humerus). The joint gets its name from Acromion, which is the end of the scapula and which meets the clavicle. An ACJ injury involves partial or complete damage to the ligaments that hold the joint together. The overstretching of these ligaments causes separation of the acromion and clavicle. ACJ injury might also be called as ACJ separation or ACJ sprain. The injury is graded from I-VI depending on the severity of the injury. While Grade I-III injuries are common, Grade IV-VI injuries are caused by high impact. Read more