Patent ID: 7935151
Filing Date: 2011-05-03
Classification: A61B,A61F

Abstract:
1. A femoral prosthetic implant for attachment to a femur during a total knee arthroplasty procedure, the femur having a long axis, the implant comprising: an outer bearing surface having a condylar portion and a patellofemoral portion; an inner bone contact surface in back to back disposition with the outer bearing surface, the inner bone contact surface including a posterior contact surface, a distal contact surface, and an anterior contact surface configured to contact geometrically corresponding bone cuts in the femur and an anterodistal contact surface interconnecting the anterior contact surface and the distal contact surface, and a plurality of fin-like structures formed as an integral part of the implant each with at least one generally planar bone contacting surface extending in both an anterior to posterior direction and a distal to proximal direction and at least one of the fin-like structures is configured to operably abut at least one of a generally planar medially facing resected bone surface and at least one of the fin-like structures is configured to operably abut at least one of a generally planar laterally facing bone surface to provide medial-lateral fixation stability between the implant and the femur, and wherein: