Patent ID: 6383222
Filing Date: 2002-05-07
Classification: A61F

Abstract:
A knee-joint prosthesis comprising a tibial component fixed to the proximal tibia, a femoral component fixed to the distal femur, said femoral component further comprising condylar bearing sections which cooperate in an articulated manner with tibial bearing sections of said tibial component, and a patellar component fixed to the patella and comprising a patellar bearing surface which touches an anterior plate section of said femoral component, wherein the anterior plate section and the bearing surface of the patellar component consist of one of the following three sliding pairs:(1) a metallic anterior plate section and a metallic bearing surface of the patellar component; (2) a ceramic anterior plate section and a ceramic bearing surface of the patellar component; (3) a ceramic anterior plate section, and bearing a surface of the patellar component made of plastic.