The shoulder is stabilized by a group of muscles and their tendons. This group of muscles (supraspinatus, infraspinatus, teres minor, and subscapularis), and their tendons, is called the rotator cuff or rotor cuff. The rotator cuff is important in shoulder movement and in maintaining shoulder joint stability.
Muscles and tendons can be irritated or damaged, and as a result, a rotater cuff injury can appear. The shoulder injury may occur suddenly after a specific traumatic injury, such as an