What is the AC Joint?
The AC joint, also known as the Acromioclavicular Joint, is one of the four joints that make up the shoulder complex. It is the area where the clavicle (collarbone) attaches to the top, or “roof” of the shoulder, called the acromion. This is located on the shoulder, away from the neck, toward the arm. The AC joint is stabilized by the AC capsule and 2 stout coraclavicular ligaments – the conoid and the trapezoid. If the shoulder sustains an impact or force directly, or indirectly, the AC joint and it’s supporting ligaments can be separated or moved from their normal anatomical position. Dr. Armando Vidal, orthopedic shoulder surgeon serving Vail, Aspen and the surrounding Denver, Colorado communities, specializes in AC joint reconstruction and repair.