Patent ID: 8303667

Claim:
An ankle prosthesis comprising: a talar implant comprising a body for mounting to a top of a talus, the body comprising at least one talar fastening hole; a tibial implant comprising a plate for mounting to a bottom of a tibia; a flange extending from the plate for bearing against an anterior surface of the tibia, the flange comprising at least one tibial fastening hole; and a plurality of fasteners for compression locking engagement with the at least one talar fastening hole and the at least one tibial fastening hole for fastening the talar implant and the tibial implant to the talus and the tibia respectively, each of the fasteners comprising locking means and an elongated unthreaded body; wherein the at least one talar fastening hole and the at least one tibial fastening hole each comprise a distal end comprising: a first arc section having a first radius; and a second arc section having a second radius greater than the first radius; whereby the fastener is eccentrically insertable through the at least one talar fastening hole and the at least one tibial fastening hole, the eccentricity defined by a shift of the fastener toward the second arc section by a distance of up to the difference between the first and the second radii.