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 ...

Posterior instability is less common than anterior shoulder instability, encompassing approximately 10% of all shoulder instability in young active patients. The etiology of posterior instability is ...

Shoulder dislocations are a fairly common injury in younger patients with shoulder injuries. Anterior dislocations are more common than posterior dislocations; the mechanism is typically forces that ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The shoulder is the most commonly dislocated ...