An orthopedic implant apparatus, said apparatus comprising: a body, said body having a generally cylindrical shape and comprising a first material, a flat bottom surface, a concave upper surface disposed opposite said bottom surface, and a longitudinal axis disposed through the center of said body; a cylindrical bore, said bore disposed along said longitudinal axis through said top surface of said body, a cylindrical plug, said plug comprising a second material and disposed within said bore of said body; and at least one stem, said at least one stem connected to said bottom surface of said body.

A trial orthopedic implant having a plurality of bearing component augments of differing heights, where each augment releasably, slidably connected to the trial implant.

The present disclosure generally relates to an elbow arthoplasty prosthesis that includes an ulnar component, a humeral component, one or more articulation liners, and a retention trap. The ulnar component includes a spherical bearing head that can be inserted into the humeral component in a number of orientations. The articulation liners and the retention trap are operatively engaged to the humeral component to retain the ulnar component within a humeral socket. The present disclosure also relates to methods of assembling and implanting the prosthetic device.

Methods and devices are disclosed for joint (e.g., shoulder) arthroplasty, including for reverse joint arthroplasty. In one aspect, there is provided a trial device for determining inclination, offset, and/or version of a prosthetic tray with respect to a prosthetic stem or stemless implant. In another aspect, there is provided a joint (e.g., shoulder) prosthesis, which allows for variable offset, inclination or version or any combination thereof. In another aspect, there is provided a method for setting an offset or inclination angle or a version angle or any combination thereof of a prosthetic tray with respect to a stem or stemless device implanted or to be implanted in a bone of a joint (e.g., shoulder) by matching the corresponding offset or version or inclination or any combination thereof to a trial device.

An orthopedic implant apparatus, said apparatus comprising: a body, said body having a generally cylindrical shape and comprising a first material, a flat bottom surface, a concave upper surface disposed opposite said bottom surface, and a longitudinal axis disposed through the center of said body; a cylindrical bore, said bore disposed along said longitudinal axis through said top surface of said body; a cylindrical plug, said plug comprising a second material and disposed within said bore of said body; and at least one stem, said at least one stem connected to said bottom surface of said body.

A method of implanting a joint prosthesis assembly for joint arthroplasty using a coupling mechanism is disclosed. The method includes exposing a joint of a patient, resecting a portion of the joint, inserting a second prosthesis of the joint prosthesis assembly into a medullary canal, and inserting a first prosthesis of the joint prosthesis assembly from a lateral side of the joint. The joint prosthesis assembly includes a magnet. The magnet is configured to lock the first prosthesis of the joint prosthesis assembly to the second prosthesis of the joint prosthesis assembly. The first prosthesis of the joint prosthesis assembly includes a recess. The second prosthesis of the joint prosthesis assembly includes a protrusion. The recess is configured to house the protrusion. Alternatively, the first prosthesis and the second prosthesis may be assembled in a direct line using the magnet for secure coupling of the components.

The present invention discloses a semi-radial head prosthesis for matching to a non-fractured part of a bone. The prosthesis comprises a prosthesis head (3) matching to a radial head of the non-fractured part, the prosthesis head having a fractured surface, the prosthesis head (3) is jointed with the non-fractured part (2) to form an intact radial head. In the present invention, when the partial articular surface of the radial head is fractured, it is unnecessary to remove the entire radial head. Instead, the radial head of the fractured part is replaced with a prosthesis head and the radial head of the non-fractured part is retained. The two parties are combined to form an intact radial head. This minimizes iatrogenic injuries to the patients, and is good for the joint intactness and joint stability.

The present invention relates to the diagnosis and treatment of joint-related diseases, in particular osteoarthritis. Based on the analysis of the microarchitecture, such as microchannels, of the subchondral bone, the present invention provides methods for evaluating the health state of a joint as well as determining whether a joint is prone to develop or has already developed a disease correlated to joint and cartilage destruction. The invention further provides for membranes and other implants mimicking healthy subchondral bone structure suitable for promoting regeneration of joint structure and function.

A system and methods are provided for treating radial head fractures. The system includes an implant, a sterile instrument kit for radial head arthroplasty, and a head sizer and assembly tray for sizing and assembling implants. The implant includes a head that is coupled with a stem. The head is adapted to be placed into sliding contact with a capitellum of the radiocapitellar joint. The stem is configured to be inserted into a hole reamed into a medullary canal of the radial head. The sterile instrument kit comprises a multiplicity of instruments including any one or more of trial heads and trial stems, a starter awl, a reamer, a planar, an inserter cap, and an impactor. The instruments are configured for implanting the implant into the radiocapitellar joint such that the implant restores biomechanical properties of the joint.

A humeral implant configured for implantation at a distal end portion of a humerus. The humeral implant can be configured to articulate with a portion of an ulna. The humeral implant may include a body portion having a first end, a second end, and a side surface that extends between the first end and the second end, where the side surface includes a concave region that defines a first cross-sectional diameter that is a minimum cross-sectional diameter of the body portion.