A bone fusion screw comprises a hollow elongated body having a longitudinal axis extending between a proximal end and an open distal tip. The body defines an inner chamber bounded by an inner surface of the body extending between the proximal end and the distal tip. The body includes threads formed along at least a portion of the outer surface. At least one wedge-shaped tooth extends axially distally from the distal tip. The tooth comprises a cutting edge for cutting bone as the body is rotated. An intermediate fluted portion adjacent the distal tip comprises at least one flute. The flute has a first end adjacent the tooth at the distal tip for assisting removal of bone cuttings from the cutting edge and a second end intersecting the threads along the body. The body defines a plurality of apertures opening into the chamber.

The present disclosure relates to systems and methods for robotic, computer-aided or virtual/augmented reality assisted procedures, including with use a of patient-specific or patient-matched, customized apparatus for assisting in various surgical procedures. In varying embodiments, patient-specific guides may comprise embedded markers, chips, circuits, or other registerable components for providing information to a robotic or computer-aided device. Other apparatus described herein may be aligned and/or matched with the robotic or augmented reality equipment or another apparatus during a surgical procedure.

Assemblies of one or more implant structures make possible the achievement of diverse interventions involving the fusion and/or stabilization of the SI-joint and/or lumbar and sacral vertebra in a non-invasive manner, with minimal incision, and without the necessitating the removing the intervertebral disc. The representative lumbar spine interventions, which can be performed on adults or children, include, but are not limited to, SI-joint fusion or fixation; lumbar interbody fusion; translaminar lumbar fusion; lumbar facet fusion; trans-iliac lumbar fusion; and the stabilization of a spondylolisthesis.

A spinal treatment system includes a constraint device having an upper tether portion, a lower tether portion and a compliance member coupled therebetween. The upper tether portion is coupled with a superior spinous process of a spinal segment in a patient and the lower tether portion is coupled with an inferior spinous process or sacrum of the spinal segment. The length or tension in the constraint device is adjustable so that the construct of the tether portions and the compliance member provides a force resistant to flexion of the spinal segment. The system also includes a first prosthesis coupled with the spinal segment, wherein the constraint device modulates loads borne by the prosthesis or by tissue adjacent thereto.

A surgical fastener manipulation tool in accordance with embodiment of the present invention is useful by a surgeon to place fasteners such as threaded screws. The surgical fastener manipulation tool selectively engages a mating structure of fastener for securing the fastener thereto. Thus, advantageously, the surgical fastener manipulation tool can be used for placing such fasteners and/or can be used for extracting (i.e., removing) such fasteners. The ability to extract a fastener (e.g., a threaded bone screw) with the same tool used for placing it is highly beneficial due to time savings during a surgical procedure and is advantageous with respect to prior art fastener manipulation tool configurations that require placement and extraction tools to be differently configured.

A spinal implant for limiting flexion of the spine includes a tether structure for encircling adjacent spinal processes. Usually, a pair of compliance members will be provided as part of the tether structure for elastically limiting flexion while permitting an extension. A cross-member is provided between the compliance member or other portions of the tether structure to stabilize the tether structure and prevent misalignment after implantation.

An anchoring system for a spinal support rod. The anchoring system includes a self-tapping orthopedic fastener that is bored through the ilium via a lateral incision and a mounting receiver that is positioned to receive the orthopedic fastener via a posterior incision. The orthopedic fastener may be implanted from a lateral approach or a posterolateral approach. The mounting receiver may be implanted from a posterior or superior posterior approach.

Methods and apparatus for immobilizing a synovial joint, such as a sacroiliac (SI) joint are disclosed. In one form, a multipiece fixation device, such as a dowel, includes multiple expandable fasteners that are configured to fix adjacent bones of a synovial joint with respect to one another. The expandable fasteners include expansion portions that are expanded radially via insertion of another expandable fastener or an expansion device to fix the expandable fasteners to the bone. The fixation device may be configured to provide for compression or distraction of the bones of the synovial joint while at the same time stabilizing the joint.

A tissue fixation implant that includes leading fixation and trailing fixation members, each fixation member having a proximal head and an elongate shank with a distal tip, and each fixation member adapted to at least partially contact the other fixation member at one or more points along their respective lengths. The tissue fixation implant includes a proximal inter-engagement feature for fixedly engaging each of the two fixation members relative to one another when engaged within tissue, including bone tissue, soft tissue, and combinations of these, and has an interior chamber suitable for receiving osteogenic material to enhance new bone growth and fusion of the fixation implant within bone.

The present invention generally relates to methods and devices for treatment of spinal deformity, and in particular to the utilization of at least one implant to either maintain the position of at least one vertebra of a patient to prevent increase in abnormal spinal curvature, to slow progression of abnormal curvature, or to impose at least one corrective displacement and/or rotation on at least one vertebra of a patient so as to incrementally correct abnormal spinal curvature.