The shoulder joint is made up of four joints that work together for movement and stability. The rotator cuff, which includes four muscles, is essential for shoulder movement and stability. The ...

A SLAP tear is a shoulder injury that involves the top part of the labrum—the ring of cartilage that surrounds your shoulder socket. Your labrum helps keep your shoulder stable. SLAP stands for ...

Shoulder instability occurs when the arm’s ball joint moves in and out of the shoulder socket joint. Chronically unstable shoulders can lead to loose shoulder joints that slip out of place repeatedly.