Abstract: A system comprising a fusion cage and at least one engagement member is provided. The fusion cage includes a first member and a second member. The engagement member is configured to retain the first and second members in an expanded state while simultaneously fixing the fusion case to adjacent vertebrae.

Abstract: Anatomic points within the body are projected outside the body through the use of extenders (180, 182, 188). The projected points may then be used for measurement, or to facilitate the selection or configuration of an implant that is positioned proximate the anatomic points using a slotted cannula (143). Such an implant may be a rod (270) for a posterior spinal fusion system. Pedicle screws (140, 142, 148) may be implanted into pedicles of the spine, and may then serve as anchors for the extenders. The extenders (180, 182, 188) may have rod interfaces (214, 216, 218) that receive the rod (270) in a manner that mimics the geometry of the pedicle screws (140, 142, 148) so that the selected or configured contoured rod (270) will properly fit into engagement with the pedicle screws (140, 142, 148).

Abstract: A tissue resection device may include an hourglass shaped burr to resect tissue according to the shape and curvature of the hourglass shaped burr. The tissue resection device may also include a depth stop window and a movable protective guard to control the amount of cutting.

Abstract: A surgical instrument and method for inserting a spinal implant in the intervertebral disc space between two adjacent vertebrae and an anchor engageable with the implant and an adjacent vertebra are provided. The instrument includes an inserter having an engagement portion including a distal engagement surface for interfacing with the implant and a handle portion. The engagement portion includes a track for slidably translating the anchor toward the engagement surface. A kit is provided including the inserter and a tamp to force the anchor into engagement with the implant and the adjacent vertebra. The kit may also include a cutter for piercing the adjacent vertebra.

Abstract: Anatomic points within the body are projected outside the body through the use of extenders (180, 182, 188). The projected points may then be used for measurement, or to facilitate the selection or configuration of an implant that is positioned proximate the anatomic points using a slotted cannula (143). Such an implant may be a rod (270) for a posterior spinal fusion system. Pedicle screws (140, 142, 148) may be implanted into pedicles of the spine, and may then serve as anchors for the extenders. The extenders (180, 182, 188) may have rod interfaces (214, 216, 218) that receive the rod (270) in a manner that mimics the geometry of the pedicle screws (140, 142, 148) so that the selected or configured contoured rod (270) will properly fit into engagement with the pedicle screws (140, 142, 148).

Abstract: A tissue resection device may include an hourglass shaped burr to resect tissue according to the shape and curvature of the hourglass shaped burr. The tissue resection device may also include a depth stop window and a movable protective guard to control the amount of cutting.

Abstract: Devices for sacroiliac joint fusion may be implanted from an anterior, posterior, or lateral approach. Multiple devices may be used in a single fusion procedure. Some examples include blade anchors which extend from a central beam, pin, cage, or body.

Abstract: A soft tissue repair device can include a housing having a handle, a deployment system having an actuation member, and an insertion system having an inserter and a slider. The slider can be coupled to the actuation member and movable relative to the inserter between deployed and retracted positions. First and second anchors can be carried on an external surface of the slider such that the anchors are spaced apart and portions of the anchors are coaxial with the slider and each other. A flexible strand can couple the anchors. The insertion system can cooperate with the deployment system to move the slider to the deployed position to deploy the first anchor upon activating the actuation member a first time, and to move the slider to the deployed position from the retracted position to deploy the second anchor upon actuating the actuation member a second time after the first time.

Abstract: Systems for lower extremity fusion and arthroplasty include fusion spacers, bone plates, and articular prostheses fixed to bone by blade anchors. Examples are shown for anterior, lateral, and medial approaches.

Abstract: A total hip femoral prosthesis provides a shortened neck and more proximal coating level. Additionally, a means for strengthening the neck may be incorporated to increase stress transfer to the native bone. A method for reducing potential impingement that results from a high neck resection level includes instrumentation for cutting chamfered surfaces into the bone surrounding the proximal end of the implant. Instrumentation and methods of creating chamfered cuts are disclosed.

Abstract: A system comprising a fusion cage and at least one engagement member is provided. The fusion cage includes a first member and a second member. The engagement member is configured to retain the first and second members in an expanded state while simultaneously fixing the fusion case to adjacent vertebrae.

Abstract: A soft tissue repair device can include a housing having a handle, a deployment system having an actuation member, and an insertion system having an inserter and a slider. The slider can be coupled to the actuation member and movable relative to the inserter between deployed and retracted positions. First and second anchors can be carried on an external surface of the slider such that the anchors are spaced apart and portions of the anchors are coaxial with the slider and each other. A flexible strand can couple the anchors. The insertion system can cooperate with the deployment system to move the slider to the deployed position to deploy the first anchor upon activating the actuation member a first time, and to move the slider to the deployed position from the retracted position to deploy the second anchor upon actuating the actuation member a second time after the first time.

Abstract: The present invention provides a compression and distraction shaft assembly used to apply compression and distraction to bones including vertebrae. Shaft A assembly and shaft B assembly are attached together via a polyaxial fulcrum. The polyaxial fulcrum allows all rotational degrees of freedom between shaft A assembly and shaft B assembly. Such fulcrum, during compression and distraction, does not impart ancillary stresses or motion to vertebrae. An hourglass-shaped bore for engaging pliers is formed in approximately middle of both the shaft A assembly and the shaft B assembly. Distraction pliers having cylindrical tips are used to apply distraction to vertebrae. Once handles are pressed to impart an appropriate amount of distraction to the vertebrae, they are locked in this position. Compression pliers having cylindrical tips are used to apply compression to vertebrae. Once handles are pressed to impart an appropriate amount of compression to the vertebrae, they are locked in this position.

Abstract: A system comprising a fusion cage and at least one engagement member is provided. The fusion cage includes a first member and a second member. The engagement member is configured to retain the first and second members in an expanded state while simultaneously fixing the fusion case to adjacent vertebrae.

Abstract: A total hip femoral prosthesis provides a shortened neck and more proximal coating level. Additionally, a means for strengthening the neck may be incorporated to increase stress transfer to the native bone. A method for reducing potential impingement that results from a high neck resection level includes instrumentation for cutting chamfered surfaces into the bone surrounding the proximal end of the implant. Instrumentation and methods of creating chamfered cuts are disclosed.

Abstract: Anatomic points within the body are projected outside the body through the use of extenders (180, 182, 188). The projected points may then be used for measurement, or to facilitate the selection or configuration of an implant that is positioned proximate the anatomic points using a slotted cannula (143). Such an implant may be a rod (270) for a posterior spinal fusion system. Pedicle screws (140, 142, 148) may be implanted into pedicles of the spine, and may then serve as anchors for the extenders. The extenders (180, 182, 188) may have rod interfaces (214, 216, 218) that receive the rod (270) in a manner that mimics the geometry of the pedicle screws (140, 142, 148) so that the selected or configured contoured rod (270) will properly fit into engagement with the pedicle screws (140, 142, 148).

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: The present invention provides a compression and distraction shaft assembly used to apply compression and distraction to bones including vertebrae. Shaft A assembly and shaft B assembly are attached together via a polyaxial fulcrum. The polyaxial fulcrum allows all rotational degrees of freedom between shaft A assembly and shaft B assembly. Such fulcrum, during compression and distraction, does not impart ancillary stresses or motion to vertebrae. An hourglass-shaped bore for engaging pliers is formed in approximately middle of both the shaft A assembly and the shaft B assembly. Distraction pliers having cylindrical tips are used to apply distraction to vertebrae. Once handles are pressed to impart an appropriate amount of distraction to the vertebrae, they are locked in this position. Compression pliers having cylindrical tips are used to apply compression to vertebrae. Once handles are pressed to impart an appropriate amount of compression to the vertebrae, they are locked in this position.

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 posterior spinal fusion system may include a plurality of cannulas that mate with cages polyaxially coupled to pedicle screws. The cannulas maintain access to the pedicle screws to facilitate percutaneous insertion of a fusion rod into engagement with the cages. Each cannula has a pair of blades that may be held together by an abutment member that at least partially encircles the blades. Each abutment member abuts the skin to define a variable subcutaneous length of the corresponding cannula. Each abutment members is also lockably removable from the corresponding blades to enable the blades to pivot with respect to the connecting element to a position in which they can be withdrawn from the connecting element. The blades of each cannula are spaced apart to provide first and second slots of each cannula, through which the fusion rod can be percutaneously inserted.