Methods and apparatus provide for: (i) coupling a spinous process plate to one lateral side of a spinous process of a spine of a patient, the spinous process plate extending substantially parallel to a sagittal plane (anterior-posterior plane) through the spine of the patient, the spinous process plate including a first fixation element facilitating a connection of the spinous process plate to the one lateral side of the spinous process; (ii) coupling a laminar plate to a laminar on the one lateral side of the spinous process of the spine, the laminar plate extending transversely from the spinous process plate and transversely to both the sagittal plane and a coronal plane (lateral plane) through the spine of the patient, the laminar plate including a second fixation element facilitating a connection of the laminar plate to the laminar on the one lateral side of the spinous process; (iii) engaging a sub-laminar hook to the laminar on the one lateral side of the spinous process, the sub-laminar hook extending transversely from the laminar plate and substantially parallel to a transverse plane through the spine of the patient, the sub-laminar hook extending and hooking beneath the laminar on the one lateral side of the spinous process of the spine; and (iv) extending a rod toward a pedicle on the one lateral side of the spinous process of the spine of the patient, the rod having proximal and distal ends, the proximal end being connected to the laminar plate and the rod extending from the laminar plate toward the pedicle, where the rod prohibits movement of bone associated with a fracture in a pars interarticularis of a vertebral arch on the one lateral side of the spinous process of the spine.

An implantable body for a posterior stabilization system includes a lateral end, a medial end, an inwardly facing surface configured to abut against a lamina when the body is implanted along a vertebra. A lateral bone outrigger extends from the inwardly facing surface and may include a bone-abutting surface along a medial portion disposed to abut against a lateral mass of the vertebra when the body is implanted along a vertebra. The lateral bone outrigger may have a first height. A penetrating feature extends from the inwardly facing surface between the bone-engaging portion of the inwardly facing surface and the lateral bone outrigger. The penetrating feature may have a second height less than the first height. A fastener bore extends through the body at an angle toward the lateral bone outrigger.

A method of expanding the spinal canal of a vertebra including inserting a bone anchor into a first lamina of the vertebra, cutting completely through the first lamina to create a space in the first lamina, cutting partially through a second, contra-lateral of the vertebra to create a partial cut in the second lamina, engaging a first segment of a plate with the bone anchor, pivoting the bone anchor and the first lamina about the partial cut in the second lamina to increase the extent of the space in the first lamina, and connecting a second segment of the plate to a portion of the vertebra across the space from the first segment of the plate such that the plate spans the space and stabilizes the vertebra.

A distractor device is disclosed that distracts and holds open an intralaminar space. The distractor device has a housing that includes a kickstand, an actuating bar that includes a foot, and an actuator that engages and drives the actuating bar, wherein the kickstand is configured to engage a first portion of a lamina on one side of the intralaminar space and the foot is configured to engage a second portion of the lamina on another side of the intralaminar space.

A spinal implant includes an intermediate portion and a first portion extending in a transverse orientation from the intermediate portion. The first portion includes an inner surface connectable with vertebral tissue adjacent a lamina. A second portion is spaced from the first portion and extends in a transverse orientation from the intermediate portion. The second portion includes an inner surface connectable with vertebral tissue adjacent a lamina. At least one of the first portion and the second portion includes an outer surface having a mating element engageable with a mating element of a surgical instrument. Systems, surgical instruments and methods are disclosed.

The purpose of the present invention is to provide a spinal fusion implant capable of preserving turning properties of vertebral bodies, and in addition, capable of preventing false screwing (false insertion) of screws. Connection plates 3 constituting a spinal fusion implant 101 each have, on a ventral-side surface 3b, a convex-shaped portion 8 that is fitted into a concave-shaped portion of an intervertebral joint 53. In addition, a center hole 3d through which a center rod 4 is slidably inserted is formed on a side surface of the connection plate 3, such that the center of the hole is positioned closer to the back side than a virtual line L1 connecting midpoints on arc-shaped contour lines C of the concave-shaped portions of the adjacent intervertebral joints 53 when viewed from the head side of a human body.

A bone plate system for use in an open door laminoplasty procedure, including a bone plate, a first fixation element, and at least one second fixation element. The bone plate is elongated and has a generally curved shape such that the plate has an associated radius of curvature. The plate is sized and dimensioned to span a gap between a pair of bony segments, for example a pair of bony segments constituting a divided lamina. The first and second fixation elements are each configured to securely attach the bone plate to the bony segments. The bone plate has a first end including a generally U-shaped slot extending therein such that the open end of the slot comprises a first terminal end of the plate.

A system used for connecting a first implant and a second spinal implant. Among other things, the system includes a connector with a flexible member that allows the connector to be positioned a plurality of angles relative to the first implant.

A spine implant for use in spinal facet joint fixation or to connect distracted portions of a vertebral lamina in a laminoplasty through use or non-use of a spacer. One or two bone screw plates are angularly adjustable relative to a base plate for attachment by bone screws to vertebral bone. One form of the spine implant has a base plate, a first plate pivotally connected to the base plate for angular adjustment relative to the base plate and configured to hold one or two bone screws for attaching the first plate to first vertebral bone, and a second plate configured to hold two bone screws for attaching the second plate to second vertebral bone. The second plate may be pivotally connected to the body for angular adjustment of the second plate relative to the base plate or fixed to the base plate at a predetermined angle.

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.