Ma. Wirth et al., RECURRENT POSTERIOR GLENOHUMERAL DISLOCATION ASSOCIATED WITH INCREASED RETROVERSION OF THE GLENOID, Clinical orthopaedics and related research, (308), 1994, pp. 98-101
Recurrent traumatic posterior glenohumeral dislocation is rare and pro
bably represents < 5% of all recurrent shoulder instability cases.(4)
Operative management of this problem is considered when symptomatic re
current instability occurs despite an adequate physician-directed reha
bilitation program.(2,7,9,13,15,17,19) Before surgery, it is essential
to recognize all directions of instability and any anatomic factors t
hat may predispose the shoulder to recurrent instability, such as hume
ral head or glenoid defects, abnormal glenoid version or other anthrop
omorphic abnormalities, rotator cuff tears, neurologic injuries, or ge
neralized ligamentous laxity. The authors report on a patient who had
2 previous failed attempts at posterior capsulorrhaphy for recurrent p
osterior shoulder dislocation after an atraumatic injury. The patient
demonstrated a previously unrecognized unilateral increase in glenoid
fossa retroversion and was successfully treated with a posterior openi
ng wedge osteotomy of the scapular neck.