A case of posterior instability shoulder with Reverse Bankart lesion treated with arthroscopic repair

Abstract

Glenohumeral instability is a relatively common condition affected in 2% of population, with posterior instability is very uncommon. Glenohumeral instability is usually anterior instability. Posterior instability usually seen in electric shock, seizures, psychosomatic disorders. Redislocation and persistent pain is the main indication for repair of posterior instability due to posterior labral tear. Normally done as open technique by posterior approach, we procede to manage by Arthroscopic stabilization. The posterior capsule, posterior band of the inferior glenohumeral ligament, and posterior labrum provide the greatest support posteriorly. An isolated lesion in any one of these posterior structures often results in unidirectional posterior instability. Arthroscopic repair of posterior labrum has shown good results. The main difficulty with the procedure is gaining appropriate acess to posterioinferior quadrant of glenoid. Additional posterolateral portal which is steep enough angle acces to glenoid is required to avoid multiple accessory portals.