A surgical procedure method includes accessing an implanted joint prosthesis having an implant engaged within a bone of the joint and a first articulating component mounted by a first mating component to a first insert component removably mounted to the implant, and partially disassembling the accessed implanted joint prosthesis by removing the first insert component with the first articulating component fixed thereto from the implant while the implant is engaged with the bone. The angular position of the first mating component with respect to the first insert component is then determined and replicated with a second insert component and a second mating component. The second insert component and the second mating component are then fixed at the replicated angle and the fixed second insert component and second mating component are mounted to the implant engaged within the bone. A new articulating component is then mounted to the second mating component.

A joint replacement system for repairing an articular surface of a first bone of a joint includes an anchor portion and an implant portion. The anchor portion includes an anchor to be secured to the bone, and an anchor fixation head including a bone-facing surface (BFS) extending radially outward from the anchor and an implant facing surface (IFS) extending from a periphery of the BFS. The implant portion is formed from a material (e.g., CoCr) more dense than the material of the anchor portion (e.g., Ti) and includes a fixation cavity to receive at least a portion of the anchor fixation head (AFH), the fixation cavity includes an anchor facing surface (AFS) configured to form a frictional connection with the IFS, and a load bearing surface having a contour for articulating against a cooperating articulating surface of a second bone of the joint.

A method for preparing an articulating component of a joint prosthesis, the prosthesis having an implant engaged within a bone of the joint, the method including inserting a first articulating component into a first insert in the implant within the bone of the joint, determining an angular orientation of the inserted first articulating component relative to the implant within the bone of the joint, positioning a second articulating component within a second insert component, replicating the angular orientation of the first articulating component in the second articulating component positioned within the second insert, fixing the second articulating component to the second insert component at the replicated angular orientation, and mounting the second insert component with the fixed second articulating component to the implant engaged within the bone of the joint.

Methods for achieving an anatomically accurate reconstruction with a modular arthroplasty assembly that includes a generally disc shaped coupler component having a prosthesis component side that includes a recess configured to interchangeably engage a prosthesis component selected from a concave cup and a convex head that is either hemispherical or hemielliptical.

A joint replacement system for repairing an articular surface of a first bone of a joint includes an anchor portion and an implant portion. The anchor portion includes an anchor to be secured to the bone, and an anchor fixation head including a bone-facing surface (BFS) extending radially outward from the anchor and an implant facing surface (IFS) extending from a periphery of the BFS. The implant portion is formed from a material (e.g., CoCr) more dense than the material of the anchor portion (e.g., Ti) and includes a fixation cavity to receive at least a portion of the anchor fixation head (AFH), the fixation cavity includes an anchor facing surface (AFS) configured to form a frictional connection with the IFS, and a load bearing surface having a contour for articulating against a cooperating articulating surface of a second bone of the joint.

A knee replacement, a kit for a knee replacement, and a method for performing a knee replacement are provided. A tibial fixed component of the knee replacement is configured to be permanently inserted into a resected tibia of a patient. A tibial modular component of the knee replacement is removably attachable to the tibial fixed component and has an upper surface to interface with a femoral component. The tibial modular component is removable from the tibial fixed component so that in the event that the fit of the knee replacement is not correct, the tibial modular component may be replaced with a differently sized tibial modular component without removing the tibial fixed component from the bone.

A modular acetabular cup assembly includes an acetabular cup, and a liner seated in the cup. The cup includes an end face, an apex opposite the end face, and a central axis extending between the apex and a center point of the end face. The liner includes an articular surface having a center of rotation which defines a pivot point of the acetabular cup assembly. In certain embodiments, the pivot point is laterally offset from the center point such that the end face is located between the pivot point and the apex.

A knee replacement, a kit for a knee replacement, and a method for performing a knee replacement are provided. A tibial fixed component of the knee replacement is configured to be permanently inserted into a resected tibia of a patient. A tibial modular component of the knee replacement is removably attachable to the tibial fixed component and has an upper surface to interface with a femoral component. The tibial modular component is removable from the tibial fixed component so that in the event that the fit of the knee replacement is not correct, the tibial modular component may be replaced with a differently sized tibial modular component without removing the tibial fixed component from the bone.

A modular acetabular cup assembly includes an acetabular cup, and a liner seated in the cup. The cup includes an end face, an apex opposite the end face, and a central axis extending between the apex and a center point of the end face. The liner includes an articular surface having a center of rotation which defines a pivot point of the acetabular cup assembly. In certain embodiments, the pivot point is laterally offset from the center point such that the end face is located between the pivot point and the apex.

A modular acetabular cup assembly includes an acetabular cup, and a liner seated in the cup. The cup includes an end face, an apex opposite the end face, and a central axis extending between the apex and a center point of the end face. The liner includes an articular surface having a center of rotation which defines a pivot point of the acetabular cup assembly. In certain embodiments, the pivot point is laterally offset from the center point such that the end face is located between the pivot point and the apex.