Abstract: A minimally invasive dilation device includes a plurality of rigid arms radially arrayed about a center and a dilating member positioned between the arms. A stylus may occupy the center. An outer flexible sleeve may be circumferentially secured to the arms, lying within or without the plurality of arms. An inner mesh may surround the stylus and dilating member. The device may be introduced into tissue toward a targeted area, while in a closed configuration. The dilating member may be a balloon, wherein upon inflation of the balloon, the arms are pushed radially outward, expanding the device and dilating the surrounding tissue. The dilating member may be a tube, wherein upon insertion of the tube, the arms are pushed radially outward. A cannula may be inserted inside the plurality of arms to keep the arms in an open configuration, and the dilating member may be withdrawn, providing an open passageway through the device to the targeted area. The device may be used with a neural monitoring system.

Abstract: An external fixation system may have a first bone anchoring body configured to be secured to a first bone, a second bone anchoring body configured to be secured to a second bone, and a first strut assembly. The first strut assembly may have a first end configured to be removably coupled to the first bone anchoring body, a second end configured to be removably coupled to the second bone anchoring body, an intermediate portion that extends between the first end and the second end, the intermediate portion having a length that is adjustable, and a clutch mechanism. The clutch mechanism may be movable between an unlocked position in which the clutch mechanism allows both increase and reduction in the length, and a restricted position in which the clutch mechanism allows one of increase and reduction in the length while restricting the other of increase and reduction in the length.

Abstract: A bone implant, system, and method for retaining a bone fragment. The implant includes at least one hook that includes a base extending proximal to a proximal end of the implant, a bend, and a prong that extends from the bend. The prong slidably engages a guide feature that guides the at least one hook into a corresponding opening in the bone fragment.

Abstract: Devices and methods for anchoring soft tissue, tissue grafts, and the like to a bone are provided. In one example, an assembly includes a suture anchor, suture, and inserter. In another example, a method provides for reattaching soft tissue to a bone.

Abstract: An improved joint implant apparatus, system, and method. The system includes an implant having a bone-facing articular surface configured to replace at least part of a natural articular surface of a bone adjacent to a joint. The system also includes a transosseous coupler and a bone anchor configured to reside proximate another surface of the bone, separated from the natural articular surface by a bone tunnel. The bone anchor is configured to couple the transosseous coupler to the bone such that the transosseous coupler retains the implant in place on the natural articular surface of the bone.

Abstract: Examples of the invention relate to methods, implants, and instruments for compressing first and second bone portions or a bone portion and an implant together.

Abstract: Systems and methods for performing an osteotomy are presented. Examples include forming a fusion osteotomy at a metatarsocuneiform joint of the first ray of a human foot.

Abstract: A stemmed implant comprises a proximal body with a distal shaft extending from the proximal body. The proximal body exterior may be spherical, conical, cylindrical, or another surface of revolution. The distal shaft comprises multiple longitudinal ridges which may originate from the proximal body as separate columns, or which may merge together. The distal shaft and/or the ridges may become narrower as they extend away from the proximal body.

Abstract: Systems and methods for performing an osteotomy are presented. Examples include forming a fusion osteotomy at a metatarsocuneiform joint of the first ray of a human foot.

Abstract: Systems and methods for performing an osteotomy are presented. Examples include forming a fusion osteotomy at a metatarsocuneiform joint of the first ray of a human foot.

Abstract: Systems and methods for performing an osteotomy are presented. Examples include forming a fusion osteotomy at a metatarsocuneiform joint of the first ray of a human foot.

Abstract: Methods and devices for performing an osteotomy on a bone are presented. In one example of the invention, a method of performing an osteotomy on a bone includes removing a portion of bone from a first side of the bone to create a gap on the first side of the bone; making a cut on a second side of the bone, opposite the first side; and rotating the bone from a first position to a second position to close the gap on the first side of the bone and open the cut on the second side of the bone to create a gap on the second side of the bone.

Abstract: Methods and devices for performing an osteotomy produce a bone cut producing a multi-planar change in the alignment of a bone portion by rotating it relative to another bone portion.

Abstract: A modular bone fixation implant includes a center post having exterior bone engaging features and configured to be implanted within a bone. The center post includes an aperture at an outer end of the center post. One or more interchangeable modular components may be placed within the bone and anchored to the aperture of the center post. Interchangeable modular components may include staples, bone plates, and spacers, each having at least a first end including a post engaging arm sized and shaped to seat within an interlocking feature of the aperture. A locking screw is provided to anchor all components to the center post when the interchangeable modular components have been placed.

Abstract: Methods and devices for performing an osteotomy produce a bone cut producing a multi-planar change in the alignment of a bone portion by rotating it relative to another bone portion.

Abstract: Systems for joint arthroplasty include prostheses which are secured to bone with sliding anchors. Examples include unicondylar and bicondylar knee prostheses for hemi-arthroplasty and total arthroplasty. Instruments guide the anchors into proper engagement with the prosthetic components. Methods of using the prostheses and instruments are disclosed.

Abstract: A modular bone fixation implant includes a center post having exterior bone engaging features and configured to be implanted within a bone. The center post includes an aperture at an outer end of the center post. One or more interchangeable modular components may be placed within the bone and anchored to the aperture of the center post. Interchangeable modular components may include staples, bone plates, and spacers, each having at least a first end including a post engaging arm sized and shaped to seat within an interlocking feature of the aperture. A locking screw is provided to anchor all components to the center post when the interchangeable modular components have been placed.

Abstract: Systems and methods for performing an osteotomy are presented. Examples include forming a fusion osteotomy at a metatarsocuneiform joint of the first ray of a human foot.

Abstract: An adjustable femoral pin guide assembly includes a base and a femoral extension rod assembly. The base may be rotated to align with the femoral shaft axis while the femoral extension rod assembly aligns with the leg mechanical axis. An adjustable distal femoral cut guide assembly may be adjusted to provide a range of varus/valgus angles for the distal femoral resection. An adjustable, single-use, disposable four-in-one cut guide may be adjusted to position saw slots for the anterior and posterior femoral resections and the anterior and posterior chamfer cuts for various size femoral components, then locked. A foot holder assembly includes an anterior tibial target that may be adjusted in three dimensions relative to the tibia. A femoral sizing guide includes a sliding drill guide to position a pin in the distal femur in a specific orientation relative to the leg mechanical axis.

Abstract: A pedicle screw assembly including a bone fastener having a lower end for engaging bone and an upper end remote from the lower end; a head having a rod-receiving channel attached to the upper end of said bone fastener; a spinal rod insertable into the rod-receiving channel of said head, said spinal rod having an outer surface extending between first and second ends thereof, wherein at least one of the first and second ends has a reduced diameter section. A spinal rod having an outer surface extending between a first end and a second end thereof; wherein the outer surface of said spinal rod has a reduced diameter section at at least one of the first and second ends.