An extender system is configured to couple a vertebral bone anchor that has been previously implanted in a vertebra, or is newly implantable in a vertebra, to an adjacent bone, which can be an additional spinal level or an occiput, for example. The extender system includes an extension member having a body and an engagement member coupled to the body. The extension member defines an aperture extending through the engagement member. A screw is configured to attach the extension member to the vertebral bone anchor. The extension member can be fastened to the adjacent bone.

A percutaneous spinal cross link system for interconnecting a spinal fusion construct on one side of the longitudinal axis of the spine with a spinal fusion construct on the other side of the longitudinal axis may include a cross bar connected at each end by a respective connector to a respective spinal fusion rod of each of the spinal fusion constructs. The connector may include a rod receiving portion adapted to receive one of the spinal fusion rods and a cross bar receiving portion adapted to receive the cross bar in an orientation generally perpendicular to the spinal fusion rod. A cannula defined by two spaced apart blades may be connected to the connector for defining a minimally invasive pathway through body tissue for introduction of the cross bar to the connector. Other tools for use with the system are also disclosed.

A surgical connection device for a spine is disclosed including a stabilization member, compression arms and traction arms, the device being used in conjunction with first anchor points fixed to vertebrae at a first lateral side of the spine and second anchor points fixed to vertebrae at a second lateral side of the spine. A first spinal rod may be attached to the first anchor points and a second spinal rod may be attached to the second anchor points. The compression arms connect the stabilization member to the first and second anchor points or rods and bear compressive forces. The traction arms connect the stabilization member to the first and o second anchor points or rods and bear tensile forces. Application of both tensile and compressive forces via the device may serve to straighten, change a direction of bending or increase a degree of bending of the rods and/or spine. The use of the traction arms may also provide for a more flexible construct.

Lamina plate assemblies, systems, and methods thereof. A lamina plate assembly may be configured to provide lamina support following laminectomy, for example, in cervical and lumbar cases. The lamina plate assembly may include a generally elongate body having a first free end, a second free end, and a posterior portion disposed between the first free end and the second free end. Different embodiments of securing portions are used to secure the lamina plate assembly to a vertebra.

A transverse connector includes a cross member assembly, a first connector assembly, and a second connector assembly. The cross member assembly includes a cross member, a first ring, and a second ring. The cross member has a first end portion and a second end portion. The first ring is receivable on the first end portion of the cross member and the second ring is receivable on the second end portion of the cross member. The first and second connector assemblies are coupled to the first and second rings of the cross member assembly, respectively, to support the cross member between the first and second connector assemblies. The first and second connector assemblies are configured to selectively and releasably secure to bone anchors.

Various rod-to-rod connectors having robust rod closure mechanisms and related methods are disclosed herein, e.g., for enhancing the locking or clamping force on a rod. An exemplary connector can provide a robust closure mechanism for rod-to-rod connections in which the run-on length of a rod slot is minimal. The connector can include a moveable jaw that is partially disposed within a connector body and configured to pivot or translate relative to the connector body to form a fully or substantially closed rod slot around a first rod. The closed rod slot can be formed between a first rod-receiving recess defined in the connector body and a counterpart first rod-receiving recess defined in the moveable jaw. The locking or clamping force of the moveable jaw can be amplified by a mechanical advantage caused by the force exerted to lock a second rod in a second rod-receiving slot of the connector body.

Tether clamping assemblies, such as clamping assemblies used to clamp a tether about a spinal feature to assist in spinal fixation, and related methods and systems. In some embodiments, the assembly may comprise a tether configured to engage a bone or other anatomical feature, an inner coupling piece, and an outer coupling piece. A first passage may be at least partially defined by an inner surface of the outer coupling piece and an outer surface of the inner coupling piece. The first passage may be configured such that the tether can be clamped in between the inner surface and the outer surface to allow the tether to move through the first passage in a first direction and apply a force differential such that movement of the tether in a second direction opposite the first direction is made more difficult.

The invention discloses a bionic artificial spinal joint, wherein the spinal joint includes a plurality of fixing units, the fixing units are fixed on a vertebral body, at least two fixing units located on one side of a spine are arranged along the extension direction of the spine and fixed in sequence, and sufficient force can be borne between two adjacent fixing units. The overall micro-motion joint structure formed by two adjacent fixing units is both supportable and bendable. The present application imitates the function of the human inter-process joints, so that the spine equipped with the bionic artificial spine joint can be bent within a certain angle range while maintaining the height of the intervertebral space, thereby avoiding the problem of spinal rigidity after the traditional spine surgery pedicle internal fixation.

A spinal implant includes first and second pedicle screws, each of which comprises a threaded shank coupled to a head. First and second cantilevered arms are coupled to the first and second pedicle screws, respectively. The first cantilevered arm includes a contact member arranged to contact and move over a contact portion of the second cantilevered arm.

A surgical connection device for connecting two rod elements in one or more relative orientation includes a main body with receiving openings. The rod elements can be fixed to the main body by fixing elements. At least one receiving opening has an aperture at a receiving opening edge, through which aperture a rod element can be inserted into the receiving opening transversely to the orientation of the receiving opening. A connection system includes a surgical connection device and two or more rod elements.