Smith + Nephew

Smith & Nephew, Inc.

Wilkinson, Zachary Christopher

Drucker, David a.

Mckinnon, Brian W.

Smith, Richard Michael

Lenz, Nathaniel Milton

Richard Michael Smith

Brian William McKinnon

Zachary Christopher Wilkinson

Nathaniel Milton Lenz

Michael D Ries

Abraham Biglari Salehi

Gerald J Jerry

Brian W Mckinnon

Jonathan Kirk Nielsen

David A Drucker

Jonathan Kirk Nelsen

Brian W Mc Kinnon

Abraham B Salehi

Certain embodiments generally provide an improved tibial base member comprising keel portions that allow one or both cruciate ligaments to be preserved. Other embodiments provide improved lateral and/or medial inserts having a mesial lip that helps relieve and or prevent impingement between the femoral component and the tibial eminence. Other embodiments provide improved femoral components having various chamfers to provide additional clearance with respect to the tibial eminence and posterior cruciate ligament without decreasing bone coverage.

Cruciate-retaining knee prosthesis

Methods and apparatus for performing knee arthroplasty, including, but not limited to, bicruciate retaining knee arthroplasty, are described herein. Methods and apparatus for preparing a distal femur for a femoral implant as well as methods and apparatus for preparing a proximal tibia for a tibial implant are described. These methods and apparatus, in at least some embodiments and uses, facilitate decreasing the complexity of knee arthroplasty procedures such as bicruciate retaining procedures, while maintaining, if not improving on, the safety, accuracy and/or effectiveness of such procedures.

Methods and apparatus for performing knee arthroplasty

Certain embodiments generally provide an improved tibial base member comprising keel portions that allow one or both cruciate ligaments to be preserved. Other embodiments provide improved lateral and/or medial inserts having a mesial lip that helps relieve and/or prevent impingement between the femoral component and the tibial eminence. Other embodiments provide improved femoral components having various chamfers to provide additional clearance with respect to the tibial eminence and posterior cruciate ligament without decreasing bone coverage.

Growing community of inventors

Memphis, TN, United States of America

Richard Michael Smith