Patent ID: 6875236

Claim:
An ankle replacement prosthesis system comprising a jig sized to fit in an ankle joint between a tibia and a talus to guide formation of a prosthesis-receiving cavity that traverses a joint between the talus and a calcaneus, the jig including a post sized to rest in an intramedullary passage formed through the calcaneus and talus adjacent the ankle joint to orient the jig during formation of the prosthesis-receiving cavity, the post accommodating removal of the jig after formation of the prosthesis-receiving cavity; and a prosthesis including a talo-calcaneal stem sized to extend within the prosthesis-receiving cavity and prevent movement of the joint between the talus and the calcaneus, the talo-calcaneal stem including an inferior portion sized to attach to a calcaneus and a superior portion sized to attach to the talus and support an artificial joint surface that engages another prosthesis on the tibia.