Knee-joint prosthesis

Details Knee-joint prosthesis Knee-joint prosthesis

1990-05-30

1992-03-03

Frinks, Ronald

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 18, A61F 238

Patent

active

050928953

ABSTRACT:
A knee joint prosthesis for permanent anchoring in the bone tissue of a knee joint including a femur and a tibia is disclosed including a femur portion having an articulation element with a convex surface, a fixation rail for anchoring the articulation element to the femur, and an anchoring element for anchoring the fixation rail to the femur, and the tibia portion including a movable tibia plateau having a concave surface for cooperation with the convex surface of the femur articulation element, a fixed tibia plateau for anchoring the movable tibia plateau to the tibia, and an anchoring element for anchoring the movable tibia plateau to the tibia, the anchoring element including a pair of cylindrical rods imbedded in the tibia transversely to the longitudinal direction of the tibia and including at least one recess, with the fixed tibia plateau including a locking base which can be received by the recess in the cylindrical rods to anchor the movable tibia plateau to the anchoring element.

REFERENCES:
patent: 4309778 (1982-01-01), Buechel et al.
patent: 4673407 (1987-06-01), Martin
patent: 4673408 (1987-06-01), Grobbelaar
patent: 4838891 (1989-06-01), Branemark et al.

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