AC Joint

AC Joint Injuries

What to Know About the Acromioclavicular Joint (AC Joint) The acromioclavicular joint, otherwise known as the AC joint, is the junction between the acromion (highest point of the shoulder) and the clavicle (collarbone). The AC joint is a main connection between the arm and skeleton, therefore, it is a critical structure to the shoulder. [...]

AC Joint Sprain

An Overview on an AC Joint Sprain A shoulder sprain in the AC joint is typically caused by a direct blow to the “point” of the shoulder or a fall onto the shoulder. A fairly common shoulder injury among active individuals, an AC joint sprain occurs when the connective tissue and ligaments of the [...]

AC Joint Separation

AC Joint Separation Overview A common injury among physically active individuals, an AC joint separation is not truly an injury to the shoulder joint. A separated shoulder involves the acromioclavicular joint, more commonly known as the AC joint. In an AC separation, the clavicle (collarbone) separates from the scapula (shoulder blade), commonly caused by [...]

AC Joint Separation Grading

An Overview on AC Joint Separation Grading A separation of the collarbone from the shoulder blade is medically classified as an acromioclavicular (AC) joint separation. Typically sustained from a hard fall or direct hit to the AC joint, an AC joint separation is a common injury in the active population. When an injury occurs, [...]

AC Joint Injury

AC Joint Injury Overview The AC (acromioclavicular) joint is located in the shoulder where the collarbone (clavicle) meets the acromion process of the shoulder blade (scapula). This joint is reinforced by ligaments which provide stability while allowing for some motion to occur between the collar bone and acromion. The ends of the bones are [...]