Three Endobutton plates in reconstruction of coracoclavicular ligament for the dislocations of the acromioclavicular joint

Objective To evaluate the clinical results of three Endobutton plates in reconstruction of coracoclavicular ligament for the dislocations of the acromioclavicular joint.Methods 25 patients with the dislocations of the acromioclavicular joint were reviewed retrospectively.The Constant evaluation system were used to analyze the clinical effects of triple button plates technique.Results All patients obtained the follow-up and the time was 14 to 29 months.Preoperative shoulder abduction range was 40° to 80°.Postoperative abduction range was 140° to 150°.Preoperative shoulder function according to the standard of Constant score was 66.5±3.2 points.After 3 months,Constant score was(90.5±2.3) points,and 6 months Constant score was(93.5±3.1) points.Conclusions The treatment of dislocations of acromioclavicular joint by using reconstruction of coracoclavicular ligament has satisfactory functional outcome and a few trauma in joint surface,without the secondary operation.