Patent ID: 6245110
Filing Date: 2001-06-12
Classification: A61F

Abstract:
A knee joint endoprosthesis comprising:a substantially U-shaped femur element (20), viewed from medial to lateral, having a horizontal, two diagonal and two vertical joint surfaces facing a femur for installation on a resected femur bone (29), the femur element (20) being provided with two runners (24, 25), anda tibia element (1) having two slide tracks (4, 5) on which the runners (24, 25) of the femur element (20) execute a rolling away and optionally a sliding motion, the tibia element (1) having a horizontal support surface (6) facing a tibia for supporting a resected tibia (19),wherein the femur element (20) and the tibia element (1) are constructed shanklessly,at least the horizontal and both diagonal joint surfaces of the femur element (20) and the horizontal support surface (6) of the tibia element (1) are provided with an open-mesh, three-dimensional spatial network structure (7), which is an integral component of a base structure (8, 8') of the femur element (20) and the tibia element (1),medially and laterally on the femur element (20), two latches (21, 22) angled toward the femur are formed-on with respectively at least one through hole (23) into which a respective bone screw (26) can be inserted, andmedially and laterally on the tibia element (1), two latches (11, 12) angled toward the tibia are formed-on with respectively at least one through hole (18) into which a respective bone screw (14) can be inserted.