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The zLOCK Lumbar Facet Fixation System is an integrated construct comprised of a modular spacer and a single facet screw. The system is intended for temporary stabilization of the spine as an adjunct to fusion through bilateral immobilization of the facet joints in skeletally mature patients. The zLOCK Lumbar Facet Fixation System is intended for use as an adjunct to a 1-level interbody lumbar fusion from L3 to L5 with autogenous and/or allogenic bone graft and must be accompanied by an FDA cleared intervertebral body fusion device implanted at the same spinal level. The zLOCK Lumbar Facet Fixation System is indicated for the treatment of patients with lumbar degenerative disease at a single level from L3 to L5 in skeletally mature patients who have failed conservative care.

The zLOCK Lumbar Facet Fixation System is composed of a modular spacer and facet screws as an integrated construct to achieve posterior lumbar facet fixation as an adjunct to fusion. All implants are supplied sterile for single use only. The modular spacers are available in one footprint with a variety of heights to accommodate varying anatomical conditions of the patient, contain a screw hole, and are bendable with toothed surfaces to firmly anchor into the joint space and contain bone graft. The facet screw is cannulated, self-tapping, with a preassembled polyaxial washer; it is provided in one size. The modular spacer and facet screw are manufactured from Titanium Grade 1 and Titanium 6Al 4V alloy, respectively. The system is supplied with a set of non-sterile, reusable instruments to access the site, prepare it for implantation, and perform device implantation. The purpose of this 510(k) was to add a new screw size to the previously cleared zLOCK Lumbar Facet Fixation System (K240085) and to modify the length of the spacer component.

The zLOCK Lumbar Facet Fixation System is an integrated construct comprised of a modular spacer and a single facet screw. The system is intended for temporary stabilization of the spine as an adjunct to fusion through bilateral immobilization of the facet joints in skeletally mature patients. The zLOCK Lumbar Facet Fixation System is intended for use as an adjunct to a 1-level interbody lumbar fusion from L3 to L5 with autogenous and/or allogenic bone graft and must be accompanied by an FDA cleared intervertebral body fusion device implanted at the same spinal level. The zLOCK Lumbar Facet Fixation System is indicated for the treatment of patients with lumbar degenerative disc disease at a single level from L3 to L5 in skeletally mature patients who have failed conservative care.

The zLOCK Lumbar Facet Fixation System is composed of a modular spacer and facet screws as an integrated construct to achieve posterior lumbar facet fixation as an adjunct to fusion. All implants are supplied sterile for single use only. The modular spacers are available in one footprint with a variety of heights to accommodate varying anatomical conditions of the patient, contain a screw hole, and are bendable with toothed surfaces to firmly anchor into the joint space and contain bone graft. The facet screw is cannulated, self-tapping, with a preassembled polyaxial washer; it is provided in one size. The modular spacer and facet screw are manufactured from Titanium Grade 1 and Titanium 6Al 4V alloy, respectively. The system is supplied with a set of non-sterile, reusable instruments to access the site, prepare it for implantation, and perform device implantation.