An orthopaedic implant device is formed from, or defined by, a combination of different materials. These devices include a body metal component and a porous metal surface layer for intimate contact with bone and a polymer in the form of a casing that includes adhesive characteristics for attachment to...http://www.google.ca/patents/US5443512?utm_source=gb-gplus-sharePatent US5443512 - Orthopaedic implant device