The presented invention is a system for performing reverse ankle replacement in the setting of ankle joint osteoarthritis, and other degenerative conditions of the ankle joint including avascular necrosis. The presented tibial and talar components can be implanted in a cement-less or cemented fashion. The prosthesis of the presented invention consists of (1) a tibial component which includes a planar undersurface with porous texture applied to its upper, non-bearing surfaces, (2) a talar component which includes a bearing surface which is concave, (3) a polyethylene component which includes a bearing undersurface which is convex, and (4) multiple talar component embodiments with or without flanges and/or screw holes for accommodation of bone screws for additional fixation and for permitting sub-talar joint fusion.
