We designed K-U cancellous screw for fixation of fracture of the clavicle. This method using K-U cancellous screw is most suitable for fractures in the outer-middle third curvature of the bone. A type of fractures with rotation of a large intermediate fragment is also an indication for this method. We treated 21 patients during the years from 1976 to 1982 using K-U cancellous screw method. The results of this treatment were satisfactory. In one patient, the bone union was prolonged to occur about 9 months after twice repeated-operation. This prolongation was considered to be due to the damages of soft tissues, stripping ping of periosteum and blood vessels. Our method provides strong fixation for the fracture of clavicle, preventing the rotation of the bones.
