Trapezium bone replacement implant for allowing articulated movement of metacarpal, has inserts made of stainless steel and fixed to body such that inserts are arranged opposite to bone surfaces when implant is inserted in space

摘要

The implant (1) has a body (2) with a porous structure, and inserts (3) made of a metallic material e.g. stainless steel, resistive to a friction occurred against articular bone surfaces. The inserts are fixed to the body such that the inserts are arranged opposite to the bone surfaces when the implant is inserted in a space liberated by ablation of a trapezium bone. The inserts cooperate with a metacarpal (101) and a scaphoid, and have a convex articular surface (6) and a concave articular surface, respectively. An independent claim is also included for a method for fabricating an implant.