Abstract: A multi-level intersegmental stabilization implant for a facet joint of a first vertebra includes a lower retainer module having a transfacetal fastener and an upper retainer module having a second fastener configured for fastening through the pedicle of an upper vertebra. The lower and upper retainer modules are connected by an elongated carrier element dimensioned such as to span across at least two vertebrae. The transfacetal fastener is configured as a screw having a head and a shaft ending with a tip, the shaft being provided with a thread at least in a region near its tip such that it engages exclusively the lower section of the facet joint, wherein a washer is provided co-operatively connected with the transfacetal fastener, the washer being configured for bearing on an outer surface of the upper section of the facet joint.

Abstract: A stabilization implant for a facet joint of a first vertebrae includes a support module and a transfacetal fastener, wherein the support module is provided on either side with a holder for the transfacetal fastener, the transfacetal fastener having a head and a main body traversing the facet joint. The transfacetal fastener may include a super-head to form a stacked double-head arrangement, a top carrier on a top side of the transfacetal fastener, and an upward extension element, which is pivotally attached to the top carrier and which reaches upward and has a fixation portion at its upper end, the fixation portion configured for an oblique fastening to cortical structure of a second, adjacent upper vertebrae.

Abstract: In one embodiment of the invention, a cervical implant may include a spinous process base coupled to a lateral mass base. During an open door laminoplasty, a surgeon may connect the lateral mass base to the right lateral mass and connect the spinous process base to the spinous process to fixedly retract the left lamina from the left lateral mass. As a result, no implant is needed to bridge or span the open door. Instead, the implant may span the hinged lamina. Consequently, no holes must be drilled in left lamina (open door side). If no holes must be drilled in left lamina, the surgeon lessens the risk of drilling a drill bit through left lamina and into spinal cord. Furthermore, no implant base or portion, screw, bolt, or fastener of any form needs to be affixed to inferior side of the left lamina, thereby avoiding irritation of the spinal cord by the implant.