Odontoid process fracture reducing screw for use during surgery, has rod including parts placed in respective fragments, where one part has length lower than thickness of caudal fragment at place in which caudal fragment is traversed

摘要

The screw (1) has a rod (2) including a threaded distal part (20) screwed and locked in a cranial fragment and a smooth proximal part (21) placed in a caudal fragment, where the part (21) has length lower than thickness of the caudal fragment at a place in which the caudal fragment is traversed. One part has a coupling mark (22) cooperating with a tool to drive the cranial fragment in a rotatable manner. A threaded axial bore (24) receives a threaded rod (30) of a screw (3) with a head (31) that comes in support against the caudal fragment for ensuring compression of the fragments.