[Instrumentation for hollow screw osteosynthesis of basal dens axis fractures]

The trend in the treatment of odontoid bone fractures is characterized by progressive application of operative methods. Special instruments for the fixation of odontoid bone was developed. Due to the ventral extraoral approach odontoid bone is possible to fix temporary with two rigid Kirschner wires by these hollow screws drilled from the ventral lower edge of the second vertebral body through the fracture in the odontoid bone. By using this method the operative procedure is much more safety as well as the x-ray exposure of the patient and of the operating team is reduced.