Abstract: An interspinous implant comprises a first member and a second member. The members define a pathway. A third member is movable along the pathway relative to the first member and the second member. Systems and methods are disclosed.

Abstract: A facet joint replacement system includes an inferior implant with an inferior articular surface, a superior implant with a superior articular surface, and an optional crossbar. The inferior implant and the superior implant are each polyaxially adjustably connected to fixation elements which anchor the implants to adjacent vertebrae. The optional crossbar may be polyaxially adjustably connected to bilateral implants. The system components may be provided in kits which provide components of various sizes and shapes. A set of surgical instruments may facilitate implantation of the facet joint replacement system by providing tools for bone preparation, trialing, implant insertion, implant alignment, and lock-out of modular interconnections.

Abstract: Surgical access devices having wound closure features incorporated as part of the device are provided. The devices allow suture to be inserted directly into the device and operated to close an opening through which the device is disposed as or shortly after the device is removed from the surgical site. Further, the wound closure features allow for various orientations of wound closure to be achieved by adjusting an angle at which the suture enters tissue surrounding the opening to be closed. Some of the wound closure features provided for include openings formed in both the housing and cannula of the surgical access device, multiple openings formed in one or both the housing and cannula, locations of the openings being adjustable or otherwise movable, and various flexible seals. Other features, as well as methods of closing an opening through which the surgical access device was disposed, are also provided.

Abstract: A facet joint surgical tool for treating a facet joint synovial cyst includes rotatable members disposed side-by-side through a minimally invasive sheath and rotatable to reconfigure distal end portions between a facet joint penetration configuration with a tissue piercing tip and a facet joint retraction configuration. Facet joint synovial cysts located to an anterior side of the facet joint are treated by a posterior approach with access to the cyst through the facet joint retracted by the surgical tool. Facet joint synovial cysts located to a posterior side of the facet joint are treated by direct access from a posterior approach.

Abstract: The present invention includes a pedicle screw made with a bone fastener and a rod coupling head, the rod coupling head comprising an upper rod coupling: the lower rod coupling having a lateral rod opening adapted to receive a permanent rod; an angled bore extends into the lateral rod opening; and a permanent rod fastener in the angled bore to engage a permanent rod in the lateral rod opening; and a upper rod coupling having an upper rod opening adapted to receive a temporary rod, wherein the upper rod opening is formed to receive a temporary rod fastener; wherein the upper rod coupling is detachable from the lower rod coupling at a transition and a temporary rod is temporarily affixed into the upper rod opening during a bone realignment and a permanent rod is positioned in the lateral rod opening and engaged by the permanent rod fastener upon final bone alignment.

Abstract: A facet joint replacement system includes an inferior implant with an inferior articular surface, a superior implant with a superior articular surface, and an optional crossbar. The inferior implant and the superior implant are each polyaxially adjustably connected to fixation elements which anchor the implants to adjacent vertebrae. The optional crossbar may be polyaxially adjustably connected to bilateral implants. The system components may be provided in kits which provide components of various sizes and shapes. A set of surgical instruments may facilitate implantation of the facet joint replacement system by providing tools for bone preparation, trialing, implant insertion, implant alignment, and lock-out of modular interconnections.

Abstract: An expandable implant is disclosed having an adjustable height for insertion between two adjacent bony structures or joint surfaces, for example between two adjacent spinal vertebrae. The implant includes at least one gear associated with at least one threaded shaft. Rotation of the gear engages the threaded shaft to expand the implant. The implant can be inserted in a collapsed configuration and expanded in situ. The invention also provides methods for using the implant to facilitate arthrodesis or fusion of adjacent joint surfaces or spinal vertebrae.

Abstract: A medical power supply system includes: a medical device including an elongated insertion section, a power receiving unit including a power receiving member and movable relative to the insertion section in a longitudinal direction of the insertion section, and a biasing unit biasing the power receiving unit toward a distal end side of the insertion section; and a guide unit including a power transmitting unit including a power transmitting member, the insertion section being inserted into the guide unit. When the insertion section is inserted into the guide unit to a predetermined amount, the power receiving unit comes in contact with the power transmitting unit with being biased by the biasing unit, and the power transmitting member and the power receiving member face each other in an axial direction of the insertion section and have a positional relation in which wireless power transmission is possible.

Abstract: Systems for interbody fusion of adjacent bone portions may include an expanding implant and related instruments. An expanding implant may be formed as a linkage which is movable between a compact configuration and an expanded configuration. A shaft of the implant may increase and decrease in length to move between the compact and expanded configurations, and an implant width perpendicular to the length may be increased in the expanded configuration. The implant width may increase more in a first direction than a second direction opposite the first direction. An inserter instrument may releasably grasp the spacer and transform the implant between the compact and expanded configurations.

Abstract: A method of treating a spinal column shape deformation includes fixing at least two fixation screw assemblies to respective vertebrae, sliding a rod between the arm extensions on each of the fixation screw assemblies, swinging the channels of the screw assemblies relative to the fixation screws so that the channels become less inclined to the axes of the fixation screws, and so that the rod is located generally posteriorly of the spinal column, locking the channel against swinging relative to the screw, rotating the rod about its axis relative to at least one of the channels, and locking the rod against movement relative to the channel.

Abstract: Methods and devices for treating spinal deformities are provided. In one exemplary embodiment, a low-profile spinal anchoring device is provided for receiving a spinal fixation element, such as a tether, therethrough. The device generally includes a staple body that is adapted to seat a spinal fixation element, a fastening element for fixing the staple body to bone, and a locking assembly for coupling a spinal fixation element to the staple body. In one embodiment, the locking assembly includes a washer that is adapted to couple to the staple body such that the spinal fixation is disposed therebetween, and a locking nut that is adapted to engage the staple body to mate the washer to the staple body.

Abstract: The invention is a modular interbody fusion device for fusing adjacent spinal vertebrae that is adapted to be implanted in a prepared interbody space including a first modular segment having a width including a first rail extending at least partially along one side of the width and beyond a periphery of a body portion of the first modular segment, a second modular segment having a width and slidably connected to the first rail on one side of the width and having a second rail extending at least partially along another side of the width and beyond a periphery of a body portion of the second modular segment, a third modular segment having a width and slidably connected to the second rail on one side of the width and wherein the device has an expanded position in which the second and third modular segments are extended along the first and second rails and positioned in a generally end to end configuration spaced apart by the rails prior to implantation and an implanted position in which the modular segments are

Abstract: Disclosed herein is an apparatus for crimping a cable. The apparatus comprises a cannulated set screw, comprising a screw channel configured to receive the cable. The apparatus also comprises a cannulated receptacle, configured to receive the cannulated set screw and comprising a receptacle channel configured to receive the cable.

Abstract: A surgical screw configured to expand and prevent or minimize bone growth inside of the surgical screw is provided. Accordingly, the surgical screw is configured to increase the purchase of the surgical screw with respect to the bone, but also to be withdrawn from the bone without damaging the bone as a result of bone ingrowth. The surgical screw includes a center post with an inner bore and an outer sleeve concentric to the center post. An outer surface of the outer sleeve includes a thread to engage bone. The outer sleeve includes a cut pattern defining an expandable region configurable between a first state with a first radius measured from a longitudinal axis of the surgical screw to the outer surface and a second state having a second radius measured from the longitudinal axis to the outer surface.

Abstract: The invention relates to an instrument for connecting a correction rod to a bone screw, the instrument having an axial longitudinal direction and comprising an external first housing part, which includes a hollow portion having an internal thread and a portion that is approximately the shape of a half-shell and that forms a first clamp leg. The instrument further includes an external second housing part, which is approximately the shape of a half-shell and forms a second clamp leg that is hinged on the first clamp leg so as to be pivotable about a pivot axis that extends orthogonally to the axial longitudinal direction.

Abstract: A tool set for implanting bone screws in a human spine, followed by the implantation of a longitudinal connecting member into the bone screws includes a pair of independently mountable and manipulatable elongate guide tools that form a unitary tool guide when desired. Each guide tool includes attachment structure for independent operable connection of the guide tool to an arm of the bone screw. The bone screw/guide tool attachment includes an undercut and/or recess so as to resist separation of the guide tool member from an attached bone screw. Further tools include a removable stabilizer, a cooperating bone screw driver with an attached stabilizer, a closure starter/reduction tool, a closure driver and a counter torque tool.

Abstract: The present disclosure provides an adjustable external fixator which can be utilized in bone transport or bone lengthening. The adjustable external fixator includes a body, a positioning member, a bone coupling member, and a threaded rod. The body includes a slideway. At least one of the positioning member and the bone coupling member is slidably coupled to the slideway of the body.

Abstract: Disclosed is a device that is configured to be implanted adjacent interspinous processes of a patient. In one aspect, a spinal implant device comprises: a spacer region adapted to be positioned between first and second spinous processes of first and second vertebral bodies to limit movement of the first spinous process and the second spinous process toward one another; and an attachment region attached to the spacer region, the attachment region adapted to attach to the first spinous process via a fastener, the attachment region comprising a pair of pads having attachment elements that are configured to attach onto the spinous process.

Abstract: Embodiments of devices and methods of correcting vertebral misalignment, including, e.g., spondylolisthesis, are disclosed. In one embodiment, a vertebral implant may include an assembly configured to be secured to a first vertebral body, wherein the assembly includes a frame made of a first material and at least one end plate made of a second material different than the first material; a reducing plate configured to be slidably received over the central portion, wherein the reducing plate is configured to be secured to a second vertebral body; and an actuator configured to move the reducing plate relative to the frame.

Abstract: A fixation clamp for use in an external fixation system for holding bone fragments adjacent to each other with the help of fixation elements has at least one clamping assembly having a pair of jaws with at least two different size grooves to accommodate a bone fixation element such as a pin or rod. An alternate clamping assembly has at least three grooves wherein at least two of the grooves have a different size adapted to accommodate a correspondingly sized bone fixation element such as a bone pin. The longitudinal axes of the grooves define a polygon. The jaw pairs can be rotated about a central longitudinal axis to present different size reception cavities towards the pins or rocks depending on their diameter.