Traumatic Dislocation

Abstract

Shoulder dislocation is classified into four types based on the direction of dislocation: anterior, posterior, inferior (luxatio erecta), and superior dislocation. Inferior dislocation is so rare that it is reported as a rare case. We published a case report of bilateral luxatio erecta [1]. Superior dislocation does not occur unless the acromion is fractured and displaced. Thus, shoulder dislocation usually refers to either anterior or posterior dislocation. The anterior dislocation accounts for 98% of shoulder dislocation, far more common than the posterior one [2]. Since my personal experience is very limited regarding the posterior dislocation, I would like to focus on anterior dislocation in this chapter.