This thoracic and lumbar spine posterior osteosynthesis system was designed in close cooperation with French spine surgeons, based on the following philosophy: Find innovative technical solutions in order to ensure the reproducibility of the surgical act for the well-being and comfort of the patient. Innovations Unique self-contained connexion system Self contained locking component Polyaxial locking Postero-lateral loading The LDR® flattened rod Choice of stiffness Safety stop Rotational control Restoration of lordosis Mechanical optimisation Reliable clamping (flat on flat) Optimum bone anchorage Less constraints during final locking Optimised machining processes Excellent mechanical results