Abstract: A computer assisted surgical system for guiding bone cutting operations of an arthroplasty surgery is provided. The computer assisted surgical system includes a cutting guide having a guiding surface for mounting to a bone and a computer. The computer is in communication with the cutting guide and configured to generate a bone model of the first bone without the use of pre-operative bone images, determine a position of an implant model having a bone interface surface on the bone model, determine a position of the cutting guide on the first bone based on the determined position of the implant model on the bone model, and position the guiding surface of the cutting guide to one of a plurality of predetermined cut configurations relative to the bone interface surface.

Abstract: A computer assisted surgical system for guiding bone cutting operations of an arthroplasty surgery is provided. The computer assisted surgical system includes a cutting guide having a guiding surface for mounting to a bone and a computer. The computer is in communication with the cutting guide and configured to generate a bone model of the first bone without the use of pre-operative bone images, determine a position of an implant model having a bone interface surface on the bone model, determine a position of the cutting guide on the first bone based on the determined position of the implant model on the bone model, and position the guiding surface of the cutting guide to one of a plurality of predetermined cut configurations relative to the bone interface surface.

Abstract: A computer assisted surgical system for guiding bone cutting operations of an arthroplasty surgery is provided. The computer assisted surgical system includes a cutting guide having a guiding surface for mounting to a bone and a computer. The computer is in communication with the cutting guide and configured to generate a bone model of the first bone without the use of pre-operative bone images, determine a position of an implant model having a bone interface surface on the bone model, determine a position of the cutting guide on the first bone based on the determined position of the implant model on the bone model, and position the guiding surface of the cutting guide to one of a plurality of predetermined cut configurations relative to the bone interface surface.

Abstract: A computer assisted surgical system for guiding bone cutting operations of an arthroplasty surgery is provided. The computer assisted surgical system includes a cutting guide having a guiding surface for mounting to a bone and a computer. The computer is in communication with the cutting guide and configured to generate a bone model of the first bone without the use of pre-operative bone images, determine a position of an implant model having a bone interface surface on the bone model, determine a position of the cutting guide on the first bone based on the determined position of the implant model on the bone model, and position the guiding surface of the cutting guide to one of a plurality of predetermined cut configurations relative to the bone interface surface.

Abstract: A computer assisted surgical system for guiding bone cutting operations of an arthroplasty surgery is provided. The computer assisted surgical system includes a cutting guide having a guiding surface for mounting to a bone and a computer. The computer is in communication with the cutting guide and configured to generate a bone model of the first bone without the use of pre-operative bone images, determine a position of an implant model having a bone interface surface on the bone model, determine a position of the cutting guide on the first bone based on the determined position of the implant model on the bone model, and position the guiding surface of the cutting guide to one of a plurality of predetermined cut configurations relative to the bone interface surface.

Abstract: A joint prosthesis may include a tibial tray, a tibial base, a tibial articular member, and a femoral articular member. A coupler may engage the tray, and optionally the base, with an interference fit. An interference fit may be engaged using a mating surface with a constant non-tapering cross-sectional geometry.

Abstract: A joint prosthesis may include a tibial tray, a tibial base, a tibial articular member, and a femoral articular member. In some embodiments, a coupler engages the tray, and optionally the base, with an interference fit. In some embodiments, the base engages the tray with an interference fit.

Abstract: A joint prosthesis may include a modular head member, a modular body member, and a stem member. The stem member may be so tapered as to be engageable by taper press-fit into the medullary cavity of a bone. The body member may be engageable in the stem member by friction-tight press-fit at a zone of diametrical interference.

Abstract: A joint prosthesis having in part a tray that is supported by metaphyseal bone, such as the tibial component of a knee prosthesis.

Abstract: A modular joint prosthesis includes a tibial component that may be rotatable or non-rotatable. The system includes a tibial bearing insert having surface features, either male or female, that are able to be slidably mated to complementary surface features of another component. In one embodiment, the tibial component is non-rotatable and the surface features of the tibial bearing insert are slidably matable to complementary surface features of a tibial plateau. In another embodiment the tibial component is rotatable and the surface features of the tibial bearing insert are slidably matable to complementary surface features of a rotating platform base. The rotating platform base, in turn, is rotably mounted to a tibial plateau. The system may utilize a securing member to prevent translation motion between the tibial bearing insert and the tibial plateau or the tibial bearing insert and the rotatable platform base.

Abstract: A modular joint prosthesis includes a tibial component that may be rotatable or non-rotatable. The system includes a tibial bearing insert having surface features, either male or female, that are able to be slidably mated to complementary surface features of another component. In one embodiment, the tibial component is non-rotatable and the surface features of the tibial bearing insert are slidably matable to complementary surface features of a tibial plateau. In another embodiment the tibial component is rotatable and the surface features of the tibial bearing insert are slidably matable to complementary surface features of a rotating platform base. The rotating platform base, in turn, is rotably mounted to a tibial plateau. The system may utilize a securing member to prevent translation motion between the tibial bearing insert and the tibial plateau or the tibial bearing insert and the rotatable platform base.

Abstract: A modular joint prosthesis includes a tibial component formed of a tibial bearing insert and a tibial plateau. The tibial bearing insert is a modular component formed of a tibial insert body and a modular element. The tibial insert body and the modular elements are provided in a variety of geometries and sizes to yield various types of tibial insert bodies. The same tibial insert body may be used, for example, to form both rotatable and non-rotatable tibial bearing inserts.

Abstract: A modular orthopaedic clamping tool system includes a clamp and a plurality of modular tools. The clamp has a handle having substantially parallel first and second actuation members with a jaw member integral with the first actuation member and a modular attachment element integral with the second actuation member. A linkage connects the first and second actuation members and operates to maintain a substantially parallel orientation between the actuation members while the clamp moves between open and closed positions. In addition, the orthopaedic clamping tool may be locked without causing an excessive clamping force on a clamped bone.