Osteochondral repair of damaged articular joint surfaces is achieved using implants in the form of cylindrical osteochondral plugs. The plugs have an articular surface formed on at least one end. If articular surfaces are provided on both ends of the implant, the articular surfaces have differently curved...http://www.google.ca/patents/US20070299519?utm_source=gb-gplus-sharePatent US20070299519 - PREFORMED IMPLANTS FOR OSTEOCHONDRAL REPAIR