Ankle replacement system

摘要

A total ankle replacement system, novel surgical method for total ankle replacement, and novel surgical tools for performing the surgical method are described. The total ankle replacement system includes the calcaneus in fixation of a lower prosthesis body, thereby significantly increasing the amount of bone available for fixation of the lower prosthesis body and allowing the lower prosthesis body to be anchored with screws. The total ankle replacement system further includes a long tibial stem which can also be anchored into the tibia with, for example, screws, nails, anchors, or some other means of attachment. The novel surgical arthroscopic method allows introduction of ankle prostheses into the ankle joint through an exposure in the tibial tubercle. Various novel surgical instruments, such as a telescoping articulating reamer and a talo-calcaneal jig, which facilitate the novel surgical method, are also described.

主权项

1. A method, comprising:
forming a hole through a calcaneus and a talus and into a portion of a tibia; cutting at least a portion of the tibia; cutting at least a portion of a talus to form a resected talar surface; inserting a first tibial prosthesis component into the hole formed in the tibia; coupling a second tibial prosthesis component to the first tibial prosthesis component; securing a talar prosthesis to the resected talar surface by inserting a first talar prosthesis component into the hole formed in the calcaneus; coupling a second talar prosthesis component to the first talar prosthesis component such that the talar prosthesis is in an articulating relationship with the second tibial prosthesis component; and articulating a portion of the second talar prosthesis with the second tibial prosthesis.