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 shoulder dislocations are relatively uncommon, comprising only 2-4% of all shoulder dislocations. Thus, posterior dislocations often go undiagnosed, and can lead to severe consequences for ...

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 ...