Shoulder instability occurs when your shoulder joint (ball and socket) has lost is normal alignment (ball resting symmetrically in the socket), which causes your arm to lose its support. The most ...

A dislocated knee occurs when the position of the thighbone relative to the shinbone becomes disrupted at the knee joint. It can happen through trauma to your leg, like from falls, sports injuries, ...

A dislocation is a joint injury in which the bones are forced out of their usual positions and are completely separated. Your joints are where two or more bones meet. It can be hard to tell if a bone ...

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 ...

The collarbone, or clavicle, is a long, thin bone between the breastbone or sternum and the shoulder. A collarbone dislocation occurs when the collarbone moves out of its usual position, often due to ...

A dislocated elbow is a painful injury that requires medical treatment. With treatment, you should be able to restore function and range of motion to the arm. A dislocated elbow occurs when the bones ...