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 surgical instrument includes a first member defining an axis and a second member having at least one capture element. The at least one capture element being axially translatable relative to the first member such that the at least one capture element is outwardly radially movable relative to the axis and inwardly radially movable relative to the axis to capture a spinal plate. Systems, implants and methods are disclosed.

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.

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.

Methods and apparatus provide for coupling a spinous process plate to one lateral side of a spinous process of a spine of a patient; coupling a laminar plate to a laminar on the one lateral side of the spinous process of the spine; engaging a sub-laminar hook to the laminar on the one lateral side of the spinous process; and (iv) extending a rod toward a pedicle on the one lateral side of the spinous process of the spine of the patient, 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.

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.

Dural repair devices that are configured to effectively and reliably repair the damage of a dural tear due to incidental durotomies are provided, along with methods of use. The devices and methods enhance the ability of a surgeon to repair a patients dura mater, or dura, during surgery of the central nervous system. The dural repair device has a multi-layer structure configured to exert a pressure or tamponade effect to compress a patient's dura to its state prior to the spinal surgery. Thus, the dural repair devices and methods of use may reduce the patients risk morbidity, further surgery, spinal headaches, or other injuries and discomforts.

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.

A spacer for laminoplasty is provided, the spacer including: a first spacer fixed to an upper lamina plate in a state in which an incision surface of the upper laminate plate of a lamina plate of an incised cervical vertebrae is seated on and supported by the first spacer; and a second spacer fixed to a lower lamina plate so that an incision surface of the lower lamina plate of the lamina plate of the incised cervical vertebrae is in contact with and supported by the second spacer, wherein the first spacer and the second spacer are in a coupled state in which they are not separated from each other by a fixed bar, while having expandable lengths with respect to each other.

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 lamina 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.