What is a labral tear?
The shoulder joint is a ball-and-socket joint. The socket of the shoulder blade holds the ball of the upper arm bone. The socket is called the glenoid. The labrum is a lip of connective tissue located where the shoulder ligaments, which make up the joint capsule, connect to the edge of the socket. Ligaments are strong bands of tissue that attach bone to bone, helping to hold the ball in the socket. The tendon of the biceps muscle in the upper arm attaches to the shoulder just above the labrum. A tear in the labrum can occur during a shoulder or arm injury.