Posterior shoulder dislocation occurs when the top of the upper arm bone, known as the humerus, moves backward out of its socket. This causes pain, muscle spasms, and a limited range of motion. The ...

An anterior shoulder dislocation occurs when the shoulder slides forward out of the socket. It is usually the result of a sports injury, fall, or traffic accident. This shoulder injury is the most ...

The shoulder joint is your body's most mobile joint. It can turn in many directions, but this advantage also makes your shoulder joint easy to dislocate. A partial dislocation (subluxation) means the ...