Vertebral osteosynthesis material for immobilizing vertebras, has flange located such that coupling unit coupling connection rod and pedicle screw, allows articulated movement of proximal slug with respect to base part

摘要

The material has a proximal slug (5) with a flange (12), against which a coupling unit coupling a connection rod (2) and pedicle screw comes to rest. The coupling unit is mounted on a polyaxial anchoring unit. The flange is located such that the coupling unit allows articulated movement of the proximal slug with respect to a base part, when the coupling unit is tightened against the flange through a hole (4).