The shoulder is a truly amazing joint, with more range of motion than any joint in the body. The shoulder controls the position of the arm in space, powered and stabilized by the rotator cuff muscles/tendons and surrounding deltoid, pectoralis, latissimus major, and other muscles. The shoulder is attached to the rest of the torso via the collarbone and scapula which rests with it's musculature on the back of the rib cage. Because of its remarkable range of movement, the shoulder is also the joint in the body most prone to instability (dislocation).
Shoulder pain also arises from a variety of causes with the most common ones listed below.
Common Conditions of the Shoulder: