A rotator cuff injury refers to damage sustained by any part of the rotator cuff structure in the shoulder.
A collection of muscles and tendons form the rotator cuff, connecting the humerus (upper arm) to the scapula (shoulder blade). Each of the four muscles of the cuff has an insertion into the scapula, and a tendon that originates in the muscles and attaches to the humerus. The muscles and associated tendons are the supraspinatus, infraspinatus, teres minor, and subscapularis. Together they form a cuff that allows extensive movement of the arm and shoulder while helping to stabilize the shoulder joint.Learn More