| abstract |
Spinal column fixation device, in the form of a pedicle screw, has an anchoring section meant for fixation into a bone, and an adjoining head section for attachment to a longitudinal support piece. The head section has an opening that runs all the way through the part, transverse to the plane of symmetry of the fixation device, for the purpose of admitting a tension-stable fastening device which can be looped around longitudinal support piece. |