The fixing device part must ensure good stability between the bone sections at both ends of the osteotomy line.
The traction part of the traction device is generally composed of a screw and a traction track.
The screw is rotated at a predetermined speed and frequency, and the traction device, together with the bone segments fixed to the traction device, will move along the spiral track.
With the traction handle, the screw is 0.5mm. per turn of each rotation