Fig. 4

a Soft tissue of the upper edge of the sternal manubrium is stripped by a special periosteal elevator; b A special “C” shaped protective sleeve is inserted from above the sternal manubrium; c There is a barrier sheet at the posterior sleeve, which protect the important tissues under the sternal manubrium during the drilling; d Gaskets and nuts should be used during a posterior dislocation of the sternoclavicular joint to prevent postoperative redislocation