Method of preparing an ankle joint for replacement, joint...

Details Method of preparing an ankle joint for replacement, joint... Method of preparing an ankle joint for replacement, joint...

A - Human Necessities

61

F

A61F 2/42 (2006.01)

Patent

CA 2640837

A method prepares an ankle joint of a patient for replacement. The patient includes a tibia (20) having a medial portion (22), a talus (40), and an ankle (10) having a medial portion. The method employs a cutting alignment apparatus (50) including a first portion external to the patient and a second portion, and surgically prepares and exposes the medial portion of the ankle for replacement. The second portion of the cutting alignment apparatus is coupled to the tibia, and a cutting guide (90) is disposed with respect to the cutting alignment apparatus. The medial portion of the tibia is detached, a portion of the tibia proximate the talus is cut, and a portion of the talus proximate the tibia is cut. An ankle prosthesis (100) is installed to the ankle, and the medial portion of the tibia is reattached.

La présente invention concerne un procédé de préparation au remplacement de l~articulation tibio-tarsienne d~un patient. Le patient possède un tibia (20) ayant une partie médiane (22), un talus (40) et une cheville (10) ayant une partie médiane. Le procédé utilise un appareil d~alignement de coupe (50) comprenant une première partie externe au patient et une seconde partie, et prépare et expose sur le plan chirurgical la partie médiane de la cheville à remplacer. La seconde partie de l~appareil d~alignement de coupe est jointe au tibia, et un guide de coupe (90) est disposé par rapport à l~appareil d~alignement de coupe. La partie médiane du tibia est détachée, une partie du tibia proche du talus est coupée ainsi qu~une partie du talus proche du tibia. Une prothèse de cheville (100) est mise en place à l~endroit de la cheville et la partie médiane du tibia est rattachée.

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