A first implant may be configured for attachment to a talus bone. A second implant may be configured for attachment to a calcaneus bone. The first implant attached to the talus bone can move in relation to the second implant attached to the calcaneus bone. A sheet can be disposed between the first implant and the second implant to facilitate relative motion between the first implant and the second implant. The sheet may provide a curvilinear surface that engages a curvilinear surface of the first implant or a curvilinear surface of the second implant to facilitate the relative motion. A set of tools may be used to distract the talus bone from the calcaneus, which may be used for insertion of the implants.