Bilateral posterior shoulder dislocation with defect secondary to hypoglycemic coma

Posterior dislocation of the shoulder is a rare clinical entity with incidence of 6 per 1,000,000. It is more common in middle-aged men [1] and more than half of all cases may initially be missed [2]. Posterior shoulder dislocation is related to internal rotation, flexion, and abduction forcing of the shoulder secondary to grand mal seizure, electric shock, or trauma [3]. One case of posterior dislocation secondary to a seizure caused by a brain tumor has been reported [4]. Bilateral anterior dislocation because of hypoglycemic coma is very rare [5], and, to our knowledge, no case reports of bilateral posterior shoulder dislocation owing to hypoglycemic coma have been published.