Abstract: An orthopaedic surgical instrument including a femoral trial component configured to be coupled to a surgically-prepared distal end of a patient's femur. The femoral trial component has a fixation side configured to engage a posterior aspect of the surgically-prepared distal femur.

Abstract: A keel punch impactor comprises a main body having an interior bore. A locking shaft is positioned in the interior bore of the main body, the locking shaft defining a shaft axis. An actuator is in contact with the locking shaft. The actuator is moveable between a first position and a second position. The position of the locking shaft is moved within the interior bore of the main body upon movement of the actuator. In particular, the locking shaft is moved such that the shaft axis is offset when the actuator is moved from the first position to the second position. When the shaft is moved, a head on the shaft is moved into or out of alignment with a boss extending from the main body of the keel punch impactor.

Abstract: An orthopaedic prosthesis includes a curved outer surface configured to abut a patient's bone when the orthopaedic prosthesis is implanted therein. The outer surface may or may not be electrically conductive. A channel is defined in the outer surface in which one or more electrical conductors are positioned. A switch is positioned at a first location on the outer surface and is configured to establish an electrical connection between the electrical conductor and the outer surface (e.g., an electrical trace) and/or another electrical conductor when the first location of the outer surface is pressed against the patient's bone. The switch may be embodied as an end of the electrical conductor or a more complex switch such as a push-button type switch.

Abstract: An assembly tool (1) for assembly of a first component (2) of a prosthesis (4) to a second component (6) of the prosthesis (4) for use in joint arthroplasty is provided. The tool (1) includes a first member (8) operably associated with the first component (2). The first member (8) defines a first member longitudinal axis (10) of the first member (8). The tool also includes a second member (12) operably associated with the second component (6). The second member (12) defines a second member longitudinal axis (14) of the second member (12). The second member (12) is adapted to provide relative motion of the second member (12) with respect to the first member (8) when the second member (12) is rotated relative to the first member (8) about the second member longitudinal axis (14).

Abstract: A joint prosthesis includes a head component that is engaged to a bone stem through a mounting element. The mounting element is configured for articulating engagement with the stem to permit angular positioning of the head component in multiple degrees of freedom. The mounting element is fastened to the stem by a press-fit engagement and a separate mechanical fastener.

Abstract: The subject invention is a surgical scalpel, scalpel instrument and/or scalpel system (collectively, scalpel), particularly designed for use in a transverse carpal ligament surgical procedure, that evaluates an incision path with respect to a nerve in the incision path, and is used to perform the incision if appropriate. The scalpel emits an evaluation signal through a potential incision path through tissue captured by the scalpel. The scalpel utilizes the emitted evaluation signal to determine the presence of a nerve in the incision path. The dissection and evaluation (surgical) instrument includes a blade that is retractable relative to a target tissue capture area thereof. Evaluation may include determining the presence of a nerve before incision and/or the evaluating whether the target tissue has been appropriately captured.

Abstract: A liner adapted for insertion into an acetabular shell for use in hip arthroplasty. The liner includes a concave inner surface adapted to engage a femoral head. The liner also includes an outer surface adapted to engage the acetabular shell and a rim that extends between the inner surface and the outer surface. The outer surface includes a locking section extending from the rim, a composite-curved section extending from the locking section at a first transition point, and a dome section extending from the composite-curved section, wherein at the first transition point, the composite-curved section is tangential to the locking section.

Abstract: An acetabular shell for use in hip arthroplasty. The shell includes a first wall having an outer surface, an inner surface, and a rim. The shell further includes a second wall extending from the outer surface of the first wall. The second wall has an outer surface, an inner surface, and a rim. The rim of the second wall is spaced outwardly from the rim of the first wall.

Abstract: An orthopaedic prosthesis includes a curved outer surface configured to abut a patient's bone when the orthopaedic prosthesis is implanted therein. The outer surface may or may not be electrically conductive. A channel is defined in the outer surface in which one or more electrical conductors are positioned. A switch is positioned at a first location on the outer surface and is configured to establish an electrical connection between the electrical conductor and the outer surface (e.g., an electrical trace) and/or another electrical conductor when the first location of the outer surface is pressed against the patient's bone. The switch may be embodied as an end of the electrical conductor or a more complex switch such as a push-button type switch.

Abstract: A knee prosthetic system includes a femoral component, a fixed tibial bearing component, a mobile tibial bearing component and an integrated or common tibial base component. The same tibial base component can be used with either the fixed tibial bearing component or the mobile tibial bearing component. The fixed bearing component and tibial base component have mating anti-rotation features. One embodiment of the mobile bearing component does not engage the anti-rotation feature of the tibial base component. Another embodiment engages the anti-rotation feature to allow for limited rotation.

Abstract: An implantable orthopaedic knee prosthesis includes a component that is configured to be coupled to a surgically-prepared bone. A fixation side of the component includes a fixation surface that has an angled cement pocket formed therein.

Abstract: A femoral component of a knee prosthesis has spaced condyle surfaces defining a notch therebetween. The notch defines an elongated cam housing having an anterior cam and a posterior cam at opposite ends of the housing. The tibial component of the knee prosthesis includes a platform and a bearing supported on the platform, the bearing defining bearing surfaces configured to articulate with the condyle surfaces. The tibial component includes a spine projecting superiorly from the bearing that defines an anterior face and a posterior face. The posterior face and the posterior cam define complementary curved surfaces configured for cooperative engagement when the femoral component and the tibial component are at a predetermined flexion angle. The cam housing is configured to form a gap between the posterior cam and the spine when the knee is normally extended. In another feature, the spine includes a stiffening pin extending therethrough.

Abstract: The present invention provides a method for processing a green body comprising a powder mixture in which a metal powder and a space filler assume respective positions, comprising applying a material that comprises aspherical metallic particles to at least one surface of the green body, thereby forming a coating on the green body. The present invention also provides implants that are produced in accordance with such method.

Abstract: One embodiment of the present invention is directed to compositions and methods for enhancing attachment of soft tissues to a metal prosthetic device. In one embodiment a construct is provided comprising a metal implant having a porous metal region, wherein the porous region exhibits a nano-textured surface, and a biocompatible polymer matrix coating the nano-textured surface. The polymer matrix coating comprises a naturally occurring extracellular matrix with biocompatible inorganic materials distributed within the matrix, or a biocompatible polymer and an osteo-inductive agent.

Abstract: A method of performing joint arthroplasty on a patient with a bone fragment of a bone at least partially separated from the bone in one embodiment includes providing a prosthetic component with a bone connecting portion and a bone fragment portion, implanting the bone connecting portion of the prosthetic component in the bone, and attaching the bone fragment to the bone using the bone fragment portion.

Abstract: A system, apparatus, and method for determining a position of an orthopaedic prosthesis includes a patient support platform, a sensor array coupled to the patient support platform, and a controller electrically coupled to the sensor array. The sensor array is configured to generate data signals in response to an output signal of a signal source(s) coupled to the orthopaedic prosthesis and/or a bone of the patient. The controller is configured to determine a position of the orthopaedic prosthesis and/or the bone of the patient based on the data signals.

Abstract: An assembly tool for assembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty. The tool includes a first member operably associated with the first component and a second member operably associated with the second component. The second member includes a cap having a threaded recess and further includes a threaded rod adapted to engage the threaded recess so as to move the second member relative to the first member and the threaded rod is made of a harder metal than the threaded recess.

Abstract: A knee implant system includes a femoral adapter. The femoral adapter has a threaded bore so that a stem extension can be threaded onto the proximal end of the adapter. The same stem extension can be threaded onto the distal end of the tibial tray so that the number of stem extensions required in the system is reduced. The femoral adapter has a tapered exterior surface so that a metaphyseal sleeve can be frictionally connected to the femoral adapter. The metaphyseal sleeve has a threaded bore so that the same type of stem extension can be threaded onto the metaphyseal sleeve. The system can include a group of adapters to give the surgeon the option of selecting the appropriate valgus angle and anterior-posterior position of the stem extension.

Abstract: An instrument(10) for use in performing arthroplasty is provided. The instrument(10) includes a first portion(11) adapted to prepare a convex surface(64) on the head(5) of the long bone(4). The instrument (10) also includes a second portion (13) adapted to prepare an elongated cavity (62) or a third portion (14) adapted to prepare a central support surface (56) on the head (5) of the long bone (4), or both second portion (13) and the third portion (14). The third portion (14) and the second portion (13) are operably associated with the first portion(11).

Abstract: A bioprosthetic device is provided for soft tissue attachment, reinforcement, and or reconstruction. The device comprises a naturally occurring extracellular matrix portion and a three-dimensional synthetic portion. In illustrated embodiments, the naturally occurring extracellular matrix portion comprises layers of small intestine submucosa, and the three-dimensional synthetic portion comprises a foam or a three-dimensional mesh, textile, or felt.