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 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 ...