The rotator cuff is a series of four muscles that originate from the shoulder blade and attach to the outside portion of the shoulder. When the rotator cuff is torn, patients often have difficulty raising the arm above their head.
The function of the rotator cuff, however, is not raise the arm, but to stabilize the ball in the shoulder socket. With the ball stable the larger muscles around the shoulder, such as the deltoid, are then able to help raise the arm.
Disclaimer: The articles and resources provided are based on scientific articles and Dr. King’s medical opinion. Continue Reading »