The shoulder is a ball-and-socket joint that connects the upper arm bone to the shoulder blade. Four muscles attach to the bones of the shoulder joint, and these form the rotator cuff. Performing ...
What Is a Rotator Cuff Tear? A rotator cuff tear is a rip in the group of four muscles and tendons that stabilize your shoulder joint and let you lift and rotate your arms (your rotator cuff). It’s ...