A bone distractor comprising of a pair of pin holding clamps, one fixed and one movable along a threaded distraction rod. The movable clamp moves along the distraction rod with the help of a nut which engages into the threads of the rod and also in the clamp. Both the pin holding clamps have three holes placed in a triangular arrangement with each hole having internal threads for use in tightening the pins by headless screws. The triangular orientation of the pin holes in the clamp allows the distractor to be placed for bone distraction in those situations where the bone is asymmetrical in thickness, shape and contour on either side of the osteotomy. The additional third hole allows a more secure fixation of the distractor over the underlying bone. This invention is particularly useful not only for craniofacial distraction but also for distraction of fingers and toes.
