Abstract: An apparatus for facilitating the mounting of a prosthetic articulation surface to a patient tissue includes an anchoring base including a central fastener aperture extending longitudinally therethrough. A first base end is laterally spaced from the central fastener aperture. A second base end is laterally spaced from the first base end with the central fastener aperture laterally interposed therebetween. Both of the first and second base ends include a plate engagement feature. An anchor plate includes a central coupler aperture extending longitudinally therethrough. An outer perimeter is spaced laterally apart from the central coupler aperture. A plate rim extends laterally inward from the outer perimeter to substantially laterally surround the central coupler aperture. At least one plate fastener aperture extends longitudinally through the plate rim. At least one base engagement feature is located on the plate rim and is selectively engageable with the plate engagement feature of the anchoring base.

Abstract: A method and an apparatus are disclosed for identifying a proper tibia bone rotation relative to the femur bone for orientating a prosthesis in a knee replacement surgery. The proper tibia bone rotation is identified from an external rotation of the tibia in extension and an internal rotation of the tibia flexion. A point located midway between the external and internal rotations and a Whiteside line of the femur defines a center axis of tibia rotation plane. The rotational angles of the tibia may be measured by a mechanical goniometer or a computer navigation apparatus.

Abstract: A joint prosthesis comprises a distal component for anchoring to a first bone, a proximal component for anchoring to a second bone, and a coupling piece that, together with the first component, forms a flexion bearing around a first axis and, together with the second component, forms a rotary bearing formed by the pin and the bearing bush around a second axis oriented transversely to the first axis. The rotary bearing comprises a multi-layer bearing insert, having a sliding sleeve surrounding the pin and a support sleeve that encloses said sliding sleeve and is fastened to the coupling piece by means of a securing element, wherein the securing element comprises an actuation unit within the support sleeve and can be connected to the coupling piece such as to ensure tensile strength by means of two aligned bores in the support sleeve and the coupling piece.

Abstract: The present disclosure relates to porous orthopedic implants made from polymer preforms and a method of manufacturing the same. A polymer material may be formed into a preform, such as by an injection molding process or an additive manufacturing process. In an exemplary embodiment, the overall shape and the porous framework of the preform is predetermined to be substantially the same as the overall shape and the porous framework of the final orthopedic implant. Then, the preform may be pyrolyzed and coated with metal to form the final orthopedic implant.

Abstract: A knee prosthesis having a femoral component with two condyles, an opening disposed between the two condyles, and a tibial component having bearing surfaces to engage and support each of the femoral component condyles. Moving the femoral and tibial components in flexion from about 0° to about 165° causes medial pivot rotation of the femoral component upon the tibial component. Rotation may be caused by interaction between an asymmetrical cam extending between the femoral condyles and a post disposed between the bearing surfaces and extending superior from the tibial component. Rotation may alternatively be caused by asymmetrical medial and lateral condyles which translate posteriorly upon respective medial and lateral bearing surfaces at disparate rates, without a femoral cam, a tibial post, or a post/cam contact surface. Embodiments of the knee prosthesis may be used in cruciate-substituting or cruciate-retaining procedures. Embodiments of the knee prosthesis may also prevent roll forward.

Abstract: A knee joint prosthesis is disclosed. The knee joint prosthesis can include a tibial baseplate, a tibial insert, and a spine. The tibial baseplate can include a tibial plateau, having a proximal surface and an opposing distal surface, and a tibial stem extending from the distal surface of the tibial plateau. The tibial insert can be located on the proximal surface of the tibial plateau and can include an aperture. The spine can extend through the aperture of the tibial insert and into a cavity of the tibial stem, from the proximal surface of the tibial plateau. The spine can be rotatable with respect to the tibial baseplate and the tibial insert. The knee joint prosthesis can further include a femoral component including a posteriorly-located femoral cam. The posteriorly-located femoral cam can engage the spine during movement of the knee joint prosthesis.

Abstract: Systems and methods for modifying a shoulder joint configuration exhibiting wear that take into account resultant of forces responsible for the wear of the glenoid surface from geometric characteristics of wear.

Abstract: This invention is a modular intraluminal tubular stent system for deployment in the venous system and a method of stenting a vein segment using a modular stent system. One of the stents in the system includes a reinforced terminal end portion, such as a helical coil, to provide additional expansive force to maintain the initial deployed location of the stent. The coil may be interwoven into the wall of the stent, or a separate structure deployed separately.

Abstract: An artificial mitral valve is anchored in the left atrium by placing the valve between the annulus of the natural mitral valve and an artificial annulus. The artificial annulus is formed by inserting a tool into the coronary sinus, and adjusting the tool to force the wall of the left atrium to form an annulus above the artificial valve, this locking it in place and forming a hemostatic seal.

Abstract: Revision hip implants and prosthesis systems include femoral heads, cups, screws, bridges, and segmental prostheses for revision surgeries.

Abstract: A valve prosthesis comprises a valve fixation device that comprises a plurality of struts that run in a direction substantially parallel to the longitudinal axis; a first circumferential row of cells coupled to the plurality of struts; and a second circumferential row of cells coupled to the plurality of struts. The valve fixation device is compressible to a compressed state for delivery to an implantation site, and expandable to an expanded state for deployment at the implantation site. The plurality of struts are substantially rigid such that the plurality of struts do not change dimensions between the compressed state and the expanded state. The valve prosthesis also comprises a valve comprising a plurality of leaflets and a plurality of commissures. The valve is coupled to the valve fixation device such that the plurality of commissures are radially aligned with respective struts of the plurality of struts.

Abstract: Implant apparatus and methods directed toward treating conditions involving the knee joint and the patella specifically are disclosed. Full range of motion of the knee joint and tissue integrity are maintained in treatment approaches involving implanting a joint surface load reducing implant proximate the joint to change the direction of the tendons or muscles exerting forces on the joints.

Abstract: Disclosed herein are methods and devices for repairing articular surfaces in a knee joint. The articular surface repairs are customizable or highly selectable for each patient and geared toward providing optimal fit and function. Kits are also provided to enable customized repairs to be performed.

Abstract: An orthopaedic knee prosthesis includes a tibial bearing component with articular features which operate to protect adjacent soft tissues of the natural knee, promote and/or accommodate desired articulation with an abutting femoral component, and facilitate expedient and effective implantation by a surgeon.

Abstract: An improved implant having components comprising an oxidized zirconium bearing surface adapted to decrease pain, lower friction, and minimize wear when coupled with natural femoral articular cartilage. The improved implant components also provide for reduced backside wear effects in fixed and mobile implants. The improved implant components further provide for more ideal wear coupling between components in mobile bearing implants.

Abstract: Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial adjustability and retrievability years after implant. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize an adjustable bridge stop to secure the implant, and the methods of implantation employ various tools.

Abstract: A method of facilitating augmentation of osseous tissue on a surface of a bone is disclosed. The method includes combining a scaffolding, an enclosure substantially enclosing the scaffolding relatively to the surface of the bone and a cell culture seeded onto the scaffolding.

Abstract: Implantable prosthetic valves are disclosed, methods of their use, and related fabrication techniques are disclosed. In some cases, the prosthetic valves disclosed herein can include frame, skirt, and valve components. The frame component can have an overall, generally scalloped shape comprising fewer struts and fabricated from less raw material than known frames. In some cases, the prosthetic valves disclosed herein can be crimped to a smaller diameter than can other known valves.

Abstract: The present disclosure provides aortic valve prosthetic devices that are constructed in a non-axisymmetric shape, or are expandable to a non-axisymmetric shape for improved results in the repair of defective aortic valves. The devices can be surgically implanted, or they can be implanted percutaneously through an insertion catheter. The expandable devices can be self-expanding or expanded by an inflatable balloon to a non-axisymmetric cross-section geometry.

Abstract: A method for replacing a portion of a target bone in a living body includes the steps of attaching one or more first markers to a target bone, establishing a medical three-dimensional representation of the target bone, performing a virtual resection of a resection portion, the virtual resection constructing a three-dimensional representation of the resection portion and a three-dimensional representation of the remaining target bone including cutting edges, providing a virtual pattern of the resection portion, obtaining an implant or graft portion for replacing the resection portion of the target bone by using the virtual pattern of the resection portion, resecting the resection portion from the target bone according to the virtual resection using the first reference system of coordinates and coupling the implant or graft portion to the target bone in a position substantially matching a position of the resection portion before the actual resection.