Femoral augments for use with knee joint prosthesis

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/38 (2006.01)

Patent

CA 2473633

A femoral augment, or set of augments, for use with a knee joint prosthesis, where the femoral augment includes a main body portion, an aperture formed within the main body portion and extending in a generally distal/proximal direction, and a pair of legs extending outwardly from said main body portion in a generally posterior direction. In the preferred embodiment, the aperture is configured to receive a stem extension implant, and to allow it to pass through. Additionally, the legs of the femoral augment are preferably configured to be seated proximal of a proximal side of a pair of condylar portions of a femoral component of a knee joint prosthesis. The present invention is intended for situations in which the distal portion of the femur is defective, and it provides a method and devices that allow for preservation of healthy peripheral bone, while still providing the necessary augmentation to the distal portion of the femur.

L'invention porte sur une cale fémorale ou un ensemble de cales fémorales destinées à être utilisées dans une prothèse de genou. La cale fémorale comprend une partie principale, un orifice se trouvant dans la partie principale et traversant celle-ci dans une direction généralement distale/proximale et une paire de branches pointant vers l'extérieur de ladite partie principale dans une direction généralement postérieure. Dans le mode de réalisation privilégié, l'orifice a été conçu pour recevoir une tige longue. En outre, les branches de la cale fémorale ont préférablement été conçues pour reposer proximalement du côté proximal d'une paire de parties condylaires faisant partie de la composante fémorale d'une prothèse de genou. La présente invention a été conçue pour des situations dans lesquelles la partie distale du fémur est endommagée, et fournit une méthode et des dispositifs qui permettent la préservation des tissus osseux périphériques sains, tout en augmentant la partie distale du fémur.

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