We investigated the possibility of external fixation for 4-part displaced fracture of proximal humerus by adding and connecting the clavicle part for correction. We experienced a 61 year old female who sustained a 4-part displaced fracture of the proximal humerus. The first treatment consisted of manual reduction and hanging cast left angulation of the humeral head. The next percutaneous pinning and direct traction from the olecranon was broken by the patient. External fixation by drilling two half-pins into the humeral head horizontally and six pins into the shaft was attempte. To stabilize the humeral head, we connected three half-pins in the clavicle additionally. The clavicle pins were removed five weeks after operation and functional exercise was started. In the four year follow-up, no refracture was seen. The functional results and range of motion of the shoulder were satisfactory.
