14 Aug Is it a Rotator Cuff or Rotor Cup?
This question is as old as, “which came first, the chicken or the egg?” Fortunately, unlike the chicken and egg, this question has a clear answer: it’s rotator cuff. So what is the rotator cuff? Let’s start back with basic anatomy. Your main shoulder joint (known as the glenohumeral joint or GHJ) is known as a ball-and- socket joint. This type of joint, which is what your hip also is, allows for three degrees of motion: forward/backward, sideways up/down, and rotation. Unlike the hip, the shoulder joint has little bony joint stability– basically, picture a golf ball sitting on a tee. In order to keep this “golf ball” in place, the shoulder complex is surrounded by numerous soft tissue structures including ligaments, tendons, and muscles. Four of the main muscles that support the shoulder are the rotator cuff. These muscles include supraspinatus, infraspinatus, teres minor, and subscapularis. Due to the smaller nature in size of these muscles and the amount that people use their arms, injuries to this muscle group occur pretty commonly. If you or anyone you know is suffering from shoulder and arm pain, reach out today to schedule an appointment!