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[Treatment of recurrent anterior dislocation of the shoulder with pectoralis minor muscle-bone flap].

We treated 10 patients with recurrent anterior dislocation of the shoulder by transplantation of pectoralis minor muscle-bone flap transplanted to the upper part of the humerus. All patients were followed-up for an average 31 months and no recurrent was found. We consider that the muscle beily exerts a protective effect like a barrier on the weak anterio inferior region of the shoulder and increases the force for extending the shoulder and lifting the arm. The operation is based on biomechanics. Meanwhile, suturing the laxative joint capsule and repairing the weak anteroinfeior region of the shoulder is more beneficial to prevent from redislocation of the humerus head.