US 5,047,058 A · System of inserts for the tibial component of a knee prosthesis

Abstract

A plurality of various shaped wedges, each wedge having an upper and lower face, each face including a plurality of spaced aligned protrusions adapted to engage a plurality of channels formed in the under surface of the tibial base, the protrusions registering with the channels to allow positioning of the wedge relative to the shape of the tibial component in various positions along the edge of the component, so that the plurality of wedges may be positioned to align themselves with the edge of the tibial component, and therefore in addition to providing a spacer between the bone and the undersurface of the component, to be secured within the same confined area as the component.

Claims15

Dependent claims

A spacer system adapted to be inserted between an inferior contact surface of a prosthesis and adjacent bone, comprising:

a) a component of a bone prosthesis including an inferior contact surface adapted to engage adjacent bone under normal bone conditions;
and
b) a spacer adapted to fill a void between at least a portion of said contact surface and adjacent bone, including a first surface to engage the prosthesis and a second surface to engage adjacent bone;
c) the first surface of the spacer and contact surface of the prosthesis including a plurality of cooperating projections and receiving portions sized and shaped so the projections can register with the receiving portions in a plurality of locations so the spacer can be located at a selected one of a plurality of locations on the inferior contact surface of the prosthesis.

1 more element

Dependencies are inferred from the claim text.

System of inserts for the tibial component of a knee prosthesis

Life of this patent

System of inserts for the tibial component of a knee prosthesis

Life of this patent

Abstract

Claims15