Implants with bone in-growth surface and process therefor

Abstract From the Canadian patent

A process to produce a bone in-growth surface is described. Bone tissue grows into the , in-growth surface of the implanted prostheses to anchor the artificial joint mechanically. The, process machines the macroscopic surface of the prosthetic implant by inter , alia, wire-electrodischarge machining waterjet cutting, laser machining, such that channels at least 50µm, in size and up to but not limited to, 3mm in size are created tangentially to the surface. These, channels contain undercut regions which provide excellent long-term fixation of the implant in, bone tissue. The machining process creates a micro-roughness on the microscopic surface of the, channels which enhances early …