A combined apparatus for compression and distraction of a first physical component having a first bone screw and a second physical component having a second bone screw, said apparatus comprising a connected rod fixedly connected to one of the first and second bone screw heads and slidably connected to the other of the first and second bone screw heads, a rod holder, and an adjusting member comprising an adjusting means and a turning means, such that when the adjusting member is turned by use of the turning means, the adjusting means forces an increase in distance between the rod holder and adjacent bone screw head, resulting in compression or distraction as desired of the physical components.
