Devices and methods of modifying tissue for low profile and ultra profile rongeur devices to treat spinal tissue. These devices may include a curved or curveable distal region; the cutting member may be configured to operate in the curved region. Also described herein are tissue modification devices that may be flexible or bendable for positioning in the tissue (including the spinal region) but can be made rigid once in position, or otherwise fixed in place to allow leverage when modifying the tissue.

A spinal stabilization system may include a pair of structural members coupled to at least a portion of a human vertebra with connectors. Connectors may couple structural members to spinous processes. Some embodiments of a spinal stabilization system may include fasteners that couple structural members to vertebrae. In some embodiments, a spinal stabilization system, provides three points of fixation for a single vertebral level. A fastener may fixate a facet joint between adjacent vertebrae and couple a stabilization structural member to a vertebra. Connectors may couple the structural members to the spinous processes of the vertebrae. Use of a spinal stabilization system may improve the stability of a weakened or damaged portion of a spine. When used in conjunction with an implant or other device, the spinal stabilization system may immobilize vertebrae and allow for fusion of the implant or other device with vertebrae.

A surgical access system for accessing a surgical target site within a spine includes a retractor and an elongated element. The refractor has a closed configuration defining a lumen with an internal circumference, and an open configuration in which the internal circumference, at least at the distal end of the retractor, is enlarged relative to said closed configuration. The open configuration creates and maintains an operative corridor to said target site. The elongated element is releasably coupled to an interior wall of the retractor and has an extension extending distal of the distal end of the retractor into the surgical target site. When coupled to the retractor, the elongated element covers a body structure at the target site without blocking access to the operative corridor.

A technique for knee replacement surgery that allow for the removal of an oval oblong-shaped allograft bone and cartilage plug from a donor distal femur. The technique uses instruments including (i) sizing guides to match the recipient's femoral size and curvature to that of a donor femur (the sizing guides also acting as a wide pin placement template for the donor distal femur); (ii) osteotomes that cut the curved and straight portions of the implant shape (these may be disposable or reusable); and (iii) templates that fit over the guide pins and have openings to allow the osteotomes to cut the donor femur plug to the correct size, shape and depth. The instruments allow for a non-circular shape to be extracted from a donor femur for use in a bone-saving osteoarthritis distal femur resurfacing procedure.

The invention relates to a surgical instrument, in particular a sliding shaft instrument, with a main part, and a moveable part relative thereto, with a handle attached to the main part, comprising a fixed grip and a grip actuating the moveable part, with at least one guide, through which, in relation to the main part, the moveable part is moveable between an initial position and a working position, and with a sliding surface attached to the movable part and pointing towards the main part, the sliding surface being slid along a guide surface attached to the main part and pointing towards the sliding surface, with at least the sliding surface or the guide surface are assigned to each other for the formation of a washable gap.

A system for restricting flexion of a spinal segment in a patient comprises a constraint device having a tether structure and a compliance member coupled with the tether structure. The tether structure is adapted to be coupled with a superior spinous process and a sacrum. The system also includes an anchor member that is anchored to the sacrum. The anchor member has an attachment feature that is adapted to couple with the constraint device.

A system for restricting flexion of a spinal segment in a patient comprises a constraint device having a tether structure and a compliance member coupled with the tether structure. The tether structure is adapted to be coupled with a superior spinous process and a sacrum. The system also includes an anchor member that is anchored to the sacrum. The anchor member has an attachment feature that is adapted to couple with the constraint device.

A bone clamp (1, 200, 300) for use in fixation of a fractured bone, or prevention of fracture of a bone, the clamp (1, comprising a pair of handles (2a, 2b) joined together at a pivot point (5), the handles (2a, 2b) each having an arcuate jaw (4a 4b), the arcuate jaws (4a, 4b) comprising a first end (7a, 7b) having an opening at a proximal end (12a, 12b) of the jaw (4a, 4b) in communication with a second end (8a, 8b) having an opening at a distal end (14a, 14b) of the jaw (4a, 4b), the first end (7a, 7b) and second end (8a, 8b) in communication via a channel (6a, 6b), in which the channel (6a, 6b) is configured to accommodate a cable, a wire, a suture, a band or other suitable flexible material, and wherein the channel (6a, 6b) is an open channel.

A system for restricting flexion of a spinal segment in a patient comprises a constraint device having a tether structure and a compliance member coupled with the tether structure. The tether structure is adapted to be coupled with a superior spinous process and a sacrum. The system also includes an anchor member that is anchored to the sacrum. The anchor member has an attachment feature that is adapted to couple with the constraint device.

The present invention relates to the technical field of bone processing, and in particular to a composite device for autologous bone harvesting and bone processing, including: a bone harvesting auxiliary device and a bone processing device. The bone harvesting auxiliary device includes: a bone harvesting caliper, a guide sleeve, and a depth-limiting Kirschner wire. The bone processing device includes: a bone box, a fastening assembly, and a cutting assembly. The composite device for autologous bone harvesting and bone processing in the present invention is capable of precise harvesting based on preoperative imaging measurements, thereby preventing resource waste. Intraoperatively, the device can obtain cancellous bone, unicortical bone, bicortical bone, and tricortical bone. In addition, various finished bone products of different shapes and sizes can be prepared according to requirements for a bone grafting area, such as bone granules, bone strips, bone chips, and bone blocks.