Tornier Sa

Tornier Sas

Pierre Chambat

Thierry Judet

Philippe Neyret

Gerard Deschamps

G&eacute;rard Deschamps

Gėrard Deschamps

Jean-Loup Oudard

The knee prosthesis with rotary plate comprises a metal base () and a tibia plate () which are equipped with guide means () defining a center of rotation (C,C') which may be offset from that of the tibia bone axis (YY&#x2032;), so as to allow the tibia plate () to slide in rotation over the said base, the said guide means being positioned a certain distance away from the center of rotation (C, C&#x2032;).

Knee prosthesis with a rotational plate

Knee prosthesis comprising a metal base secured to an anchoring rod for fixing it into a tibia of a patient. A plastic tibia plate is freely slidable over the base. The metal base and the tibia plate are equipped with a guide mechanism defining a center of rotation offset from that of a tibia bone axis, so as to allow the plate to slide in rotation over the base. The guide mechanism is positioned a given distance from the center of rotation. The metal base comprises an upstand in the shape of an arc of a circle having a central part secured to lateral edges which are shorter than the central part. The tibia plate comprises, on a lower face thereof, a housing in the shape of an arc of a circle.

A tibial prosthesis including a disk made out of a plastic material, of which a bottom surface is provided with fastening means for the interlocking with a metal ring which reinforces the disk.

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Ste Foy les Lyon, France

Pierre Chambat