New York Society for the Ruptured and Crippled Maintaining the Hospital for Special Surgery

Limacorporate S.p.a.

Mathys Medical Ltd.

New York Society for the Ruptured and Crippled Maintaining the Hospital for Scpecial Surgery

New York Society for the Relief of the Ruptured and Crippled, Maintaining the Hospital for Special Surgery

Timothy M Wright

Joseph David Lipman

Darrick Lo

Donald L Bartel

Robert N Hotchkiss

Mark P Figgie

Michele Pressacco

Andrea Fattori

Nicola Del Negro

Russell F Warren

Daniel Delfosse

Christoph Fiedler

Thomas P Sculco

Christoph Fankhauser

Walter Supper

Fabio Catani

Thomas L Wickiewicz

Frank Hoffman

Ivan De Martino

Fernando J Quevedo Gonzalez

A tibial baseplate for tibial component of a knee prosthesis including: a bulk solid portion including a proximally facing surface adapted to accommodate a bearing element for the articulation of a femoral component of the knee prosthesis; a plurality of porous portions integral with the bulk solid portion having a porous portion contacting surface opposite to the proximally facing surface adapted to contact a proximal tibia. Advantageously, the plurality of porous portions are seamlessly incorporated and embedded in the bulk solid portion.

Tibial baseplate for tibial component of a knee prosthesis, tibial component comprising the tibial baseplate and method for manufacturing the tibial baseplate

Apparatus and methods for total elbow replacement are provided to allow a surgeon to intraoperatively select a linked or unlinked constraint by utilizing a connection located on the body of the ulnar and/or humeral stem. Additional modularity also allows the selection of a cemented or cementless stem as described herein. The modularity and adjustability provides a number of advantages.

Elbow replacement apparatus and methods

A knee joint prosthesis includes a femoral component having a first condylar bearing surface and a second condylar bearing surface. Each of the first and second condylar bearing surfaces has a cross-section in a coronal plane that exhibits at least two different radii. The prosthesis also includes a tibial component and an insert component associated with the tibial component. The insert component has bearing surfaces that are complementary to the first and second condylar bearing surfaces, wherein a contact point is established between the bearing surfaces of the insert component and the first and second condylar bearing surface. In accordance with the present invention and as a result of the above construction, varus and valgus rotation of the femoral component relative to the insert component causes the contact point to move laterally as the knee is rotated. By shifting the contact pointy laterally/outwardly, the knee stability (i.e., stiffness) gradually increased.

Constrained condylar knee device

A prosthetic joint according to the present invention includes a first implant component for attachment to a first bone and a second implant component for attachment to a second bone. The first implant component has a condylar portion that includes first and second condylar bearing surfaces and similarly, the second implant component has bearing surfaces that receive and are complementary to the first and second condylar bearing surfaces. Each of the first and second condylar bearing surfaces and each of the bearing surfaces of the second implant component has a cross-section in a coronal plane that exhibits two different radii and a contact point is established between the first and second condylar bearing surfaces and the bearing surfaces of the second implant component. The bearing surfaces of the respective implant components are configured such that varus and valgus rotation of the first implant component relative to the second implant component causes the contact point to move outwardly.

Prosthetic condylar joints with articulating bearing surfaces having a translating contact point during rotation thereof

A prosthesis for repairing a knee is made with an insert sandwiched between a femoral component and a tibial tray. The parts are shaped so that both the femoral component and the tibial tray will slidingly interface with the insert during motion of the knee. At regions where the femoral component interfaces with the insert during extension and during an initial range of flexion of the knee, the femoral component's radius of curvature (R) for flexion rotation is larger than its radius of curvature (R) for varus/valgus rotation. In a preferred embodiment, the surface of the tibial tray is convex and spherically curved, and the insert is free to move in both the posterior-anterior direction and the medial-lateral direction with respect to the tibial tray.

Self-aligning knee prosthesis

Growing community of inventors

New York, NY, United States of America

Timothy M Wright