Implant includes a body and a utile feature, for example, a smooth articulating surface. A transverse rail stem system with a plurality of rails is provided, spaced apart from the utile feature, which is adapted for transverse insertion into a bodily substrate, for example, resected bone. A surgical template—for example, to assist in sawing, drilling with a drill bit and drill guide, and broaching with a broach—along with such bone removal tools can help prepare the bone for receipt of the implant.
