A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
128/113, 128/41
A61B 17/32 (2006.01) A61B 17/14 (2006.01) A61B 17/17 (2006.01) A61F 5/04 (2006.01) A61B 17/16 (2006.01)
Patent
CA 1254811
FEMORAL SURFACE SHAPING APPARATUS FOR POSTERIOR-STABILIZED KNEE IMPLANTS ABSTRACT The present invention relates to a surgical apparatus for providing an accurately placed recess in a distal femoral surface for the intercondylar stabilizing housing of a posterior-stabilized knee implant prosthesis which apparatus comprises (a) a template having (1) a bottom surface which is adapted to be placed in an aligning relationship with the flat surface of a distal femur which has been partially shaped to receive the femoral component of a posterior-stabilized knee implant prosthesis and (2) a U-shaped slot passing through the template where the slot is of substantially the same size and shape as the outer periphery of the intercondylar stabilizing housing present on the femoral component to be implanted and (b) a drilling means, preferably in the form of an end-mill cutter, having a stop means thereon and the drilling means closely engages the sides of the U-shaped slot in the template so that the drilling means can be passed through the U-shaped slot until the stop means contacts a surface of the guide and is then drawn along the slot to create a precisely shaped and aligned recess in the femur for receipt of the intercondylar stabilizing housing. In a more preferred embodiment, the template is composed of a drilling means guide which fits over a femoral trial prosthesis which is used for trial reductions after the drill guide is used and removed.
521663
Kaufman Michael E.
Whiteside Leo A.
Dow Corning Wright Corporation
Gowling Lafleur Henderson Llp
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