At least one embodiment comprises a talus implant comprising: a body section; a neck section; a crown, wherein the crown is positioned at a top portion of the body section; at least one wing coupled to the body section, wherein the wing extends out from the body section. At least one embodiment further comprises at least one screw hole positioned in at least one of the neck section and the body section. In at least one embodiment the outer surface of the implant is polished. In at least one embodiment a portion of the outer surface is polished while a portion of the outer surface is roughened.

An intervertebral spinal cage implant system is provided. The system includes a first cage element of the intervertebral spinal cage. The system also includes a second cage element of the intervertebral spinal cage. The system further includes wherein the first cage element and the second cage element are mechanically coupled through a first coupling element. The system further includes a plurality of tethering elements configured to be mechanically coupled to corresponding vertebral bodies through a plurality of second coupling elements, wherein a first tethering element is configured to couple the first cage element to a first side of the first vertebral body and the second tethering element is configured to couple the second cage element to a second side of the first vertebral body.

There is provided an osteon template for tissue engineering, including a first plurality of vasculogenic filaments including a first hydrogel and vessel-forming cells, and a second plurality of osteogenic filaments including a second hydrogel and bone-forming cells, wherein the first plurality of vasculogenic filaments is arranged alternately with the second plurality of osteogenic filaments in a concentric arrangement.

An orthopaedic knee prosthesis includes a tibial bearing and a femoral component configured to articulate with the tibial bearing. The femoral component includes a posterior cam configured to contact a spine of the tibial bearing and a condyle surface curved in the sagittal plane. The radius of curvature of the condyle surface decreases gradually between early-flexion and mid-flexion. Additionally, in some embodiments, the radius of curvature of the condyle surface may be increased during mid-flexion.

A process for printing a talus implant comprising the steps of scanning a joint for a damaged talus, and scanning a contralateral joint for a healthy talus. Next, the process includes obtaining dimensions for a talus based upon an initial scan and then obtaining dimensions for a talus based upon the scan of the contralateral joint. Next the process includes inverting the dimensions of the talus in the contralateral joint and then comparing the dimensions of the calculated talus with a pre-set of dimensions in a database. Next the process includes exporting a set of dimensions to a printer to print a talus implant.

At least one embodiment comprises a talus implant comprising: a body section; a neck section; a crown, wherein the crown is positioned at a top portion of the body section; at least one wing coupled to the body section, wherein the wing extends out from the body section. At least one embodiment further comprises at least one screw hole positioned in at least one of the neck section and the body section. In at least one embodiment the outer surface of the implant is polished. In at least one embodiment a portion of the outer surface is polished while a portion of the outer surface is roughened.

An expandable intervertebral fusion cage is independently expandable vertically and laterally. The fusion cage includes a cage body that can receive an expansion member that causes the fusion cage to expand vertically. The cage body is responsive to a compressive force to move to an expanded lateral position, whereby the fusion cage defines a substantially circular annular profile.

An interbody implant and inserter tool for spinal fusion. The interbody implant includes a cage portion and a nose portion. In some embodiments, an outer surface of the nose portion defines at least a first concave profile in a first direction, and may define a second concave profile in a second direction, the second direction being perpendicular to the first direction. The outer surface may also define an oblong cross-section normal to a nose axis. The oblong cross-section may be axisymmetric or continuously curved (or both) about the nose axis. The concave profile(s) enable easier initial insertion of for more precisely locating the interbody implant, so that the greater insertion forces required during implantation do not occur until the interbody implant is securely and accurately placed.

An intervertebral spinal cage implant system is provided. The system includes a first cage element of the intervertebral spinal cage. The system also includes a second cage element of the intervertebral spinal cage. The system further includes wherein the first cage element and the second cage element are mechanically coupled through a first coupling element. The system further includes a plurality of tethering elements configured to be mechanically coupled to corresponding vertebral bodies through a plurality of second coupling elements, wherein a first tethering element is configured to couple the first cage element to a first side of the first vertebral body and the second tethering element is configured to couple the second cage element to a second side of the first vertebral body.

An orthopaedic knee prosthesis includes a tibial bearing and a femoral component configured to articulate with the tibial bearing. The femoral component includes a posterior cam configured to contact a spine of the tibial bearing and a condyle surface curved in the sagittal plane. The radius of curvature of the condyle surface decreases gradually between early-flexion and mid-flexion. Additionally, in some embodiments, the radius of curvature of the condyle surface may be increased during mid-flexion.