A posterior shoulder dislocation, or glenohumeral dislocation ... dislodging the upper arm bone out of its socket. The vast majority of shoulder dislocations are anterior, with only 2–5% ...

However, this shape also means that the glenohumeral ... of its socket. Anterior shoulder dislocation usually occurs when a person is holding the arm away from the body. “Posterior” means ...

Did you know that the shoulder joint, also called the glenohumeral ... the arm to move in many directions. This is one of the reasons why this area is also extremely prone to injury and dislocation.

When the arm is abducted 90° and externally rotated, there is a weak point in the anterior shoulder. In this position ... to the glenohumeral joint and palpate the anterior and posterior dimensions.