Abstract: An osteosynthesis system comprising anchoring screws, wherein at least one of the anchoring screws comprises a bone anchoring element with a longitudinal axis AA, comprising a threaded anchoring rod prolonged at the end by a coupling head and a screw head for coupling a connecting element to the bone anchoring element, wherein the screw, comprises a body with a longitudinal axis BB traversed longitudinally by a channel featuring in the lower portion a receiving cavity for receiving the coupling head of the anchoring element, at least one connecting element designed to interconnect the anchoring screws, means of tightening the connecting element on each anchoring screw, a means of straightening the bone anchoring element in relation to the screw head during tightening, wherein the means of straightening are arranged to straighten the threaded rod of the bone anchoring element and place the former in the longitudinal axis BB.

Abstract: An instrument system for carrying out a surgical procedure on vertebrae by a posterior or posterolateral approach, made up of at least one tube and at least one spinal screw capable of engaging with the proximal end of said tube and having a head with multi-axial mobility, characterized by also comprising a wedge for temporarily blocking the position of the screw head.

Abstract: An osteosynthesis system comprising anchoring screws, wherein at least one of the anchoring screws comprises a bone anchoring element with a longitudinal axis AA, comprising a threaded anchoring rod prolonged at the end by a coupling head and a screw head for coupling a connecting element to the bone anchoring element, wherein the screw, comprises a body with a longitudinal axis BB traversed longitudinally by a channel featuring in the lower portion a receiving cavity for receiving the coupling head of the anchoring element, at least one connecting element designed to interconnect the anchoring screws, means of tightening the connecting element on each anchoring screw, a means of straightening the bone anchoring element in relation to the screw head during tightening, wherein the means of straightening are arranged to straighten the threaded rod of the bone anchoring element and place the former in the longitudinal axis BB.

Abstract: An instrument system for carrying out a surgical procedure on vertebrae by a posterior or posterolateral approach, made up of at least one tube and at least one spinal screw capable of engaging with the proximal end of said tube and having a head with multi-axial mobility, characterized by also comprising a wedge for temporarily blocking the position of the screw head.

Abstract: A connecting element for a spinal fixing system that connects at least two implantable connection assemblies including a rod including a flexible part extended at one end at least by a rigid part, the flexible part including a cable at least partly surrounded by a polymer envelope, the cable including at least one elastic strand coaxial with the envelope.

Abstract: The disclosure relates to a device for establishing an anatomical reference point of an intervertebral disc for the attachment of at least one instrument Intended for the implantation, through a posterior or posterolateral approach, of a disc prosthesis or osteosynthesis cage as a replacement for the intervertebral disc. The device includes at least two means for bone anchorage each intended to be attached to a vertebra adjacent to the disc, a coupling element for the instrument and elements for adjusting the position of the coupling element relative to the position of the disc.

Abstract: The disclosure relates to a device for establishing an anatomical reference point of an intervertebral disc for the attachment of at least one instrument Intended for the implantation, through a posterior or posterolateral approach, of a disc prosthesis or osteosynthesis cage as a replacement for the intervertebral disc. The device includes at least two means for bone anchorage each intended to be attached to a vertebra adjacent to the disc, a coupling element for the instrument and elements for adjusting the position of the coupling element relative to the position of the disc.

Abstract: The disclosure relates to a device for establishing an anatomical reference point of an intervertebral disc for the attachment of at least one instrument intended for the implantation, through a posterior or posterolateral approach, of a disc prosthesis or osteosynthesis cage as a replacement for the intervertebral disc. The device includes at least two means for bone anchorage each intended to be attached to a vertebra adjacent to the disc, a coupling element for the instrument and elements for adjusting the position of the coupling element relative to the position of the disc.

Abstract: A dynamic stabilization member for the vertebrae, capable of interacting with at least two implantable connection assemblies is provided. Each connection assembly system including a system for anchoring into a vertebra and adapted for receiving the dynamic stabilization member, and a system for clamping the dynamic stabilization member (on the anchoring system), of the type that comprises a rod extending along a longitudinal axis and a cable provided with a casing made of an elastic material, characterized in that the cable comprises a fastening sheath surrounding the rod and including rigid areas spaced from each other.

Abstract: An intervertebral prosthesis includes at least one core which is positioned between an upper plate and a lower plate, the prosthesis also includes an outer casing. The aforementioned plates comprise respective inner faces which enable the core to move inside the prosthesis.

Abstract: A surgical implant that supports and assists movement adjacent vertebrae including a top part and a bottom part associated with the spinous process of one of the vertebrae, each part including means for association with one process and reciprocal means or rotational association with the other part and forming a swivel joint.

Abstract: A connecting element for a spinal fixing system that connects at least two implantable connection assemblies including a rod including a flexible part extended at one end at least by a rigid part, the flexible part including a cable at least partly surrounded by a polymer envelope, the cable including at least one elastic strand coaxial with the envelope.

Abstract: An intervertebral prosthesis includes at least one core which is positioned between an upper plate and a lower plate, the prosthesis also includes an outer casing. The aforementioned plates comprise respective inner faces which enable the core to move inside the prosthesis.