The bone implant for prostheses, particularly joints or joint members, preferably joints of the human locomotor system and especially the walking system, contains a shaft insertable into a cavity in a bone. The shaft has a total cross-section increasing from its diaphysis-associated distal end to its...http://www.google.com.au/patents/US4784124?utm_source=gb-gplus-sharePatent US4784124 - Bone implant for prostheses and tool for inserting the implant into a bone
