A system for osteosynthesis of the spine. The system includes at least two pedicular screws and a linking plate for linking the screws together in an essentially rigid manner. Each screw has a bone anchoring threaded part, a non-circular section head, and a threaded end shank adapted to cooperate with...http://www.google.de/patents/US6287309?utm_source=gb-gplus-sharePatent US6287309 - Screw and plate system for backbone osteosynthesis