We surgically treated 23 cases of distal clavicle fracture by internal fixation using K-wires. Twenty-one cases achieved bone union, but two cases them had subluxation of the acromioclavicular joint after bone union. Two cases had nonunion. In one case, resection of the distal part of the clavicle was performed and the other case, osteosynthesis with iliac bone graft by using a modified Amako plate was performed. Internal fixation using K-wires appears to be a simple procedure, and valuable for the treatment of distal clavicle fractures. It is important to evaluate preoperative X-ray accurately and to determine the site of inserting K-wires in order to prevent subluxation of the acromioclavicular joint after bone union.
