title: A new concept of acetabular fixation.
abstract: In an attempt to overcome the problem of micromotion between implant and bone and to eliminate the deleterious effects of polyethylene wear particles, I developed large, flat, hollow cylinders with perforated walls through which lamellar bone growth rapidly occurs. These cylinders were combined with self-cutting, prestressed spherical rings of pure titanium. Metallic sockets and heads coated with 4 to 6 microns of titanium nitrite and titanium carbide were created to fit a cementless straight stem and the cementless acetabular implant. The system is in clinical evaluation.
mesh_terms: D000077:Acetabulum; D000368:Aged; D000818:Animals; D001843:Bone Cements; D001846:Bone Development; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D008251:Macaca; D008297:Male; D011095:Polyethylenes; D011474:Prosthesis Design; D014025:Titanium; D014945:Wound Healing
chemical_list: D001843:Bone Cements; D011095:Polyethylenes; D014025:Titanium