Title :
Anodizing treatments for titanium implants
Author_Institution :
Synthes, Paoli, PA, USA
Abstract :
Acid, neutral salt, and alkaline anodizing treatments are described in addition to relevant industry standards. Surface attributes that have been established for anodized surgical implants include thickness (color), composition, and film growth. Electrochemical and oxide resistivity studies suggest that anodizing promotes improved film stability and enhanced corrosion resistance. Rotating bending fatigue data is documented for notched and smooth specimens that have a machined or anodized surface. Superior in vitro fretting corrosion results have been obtained for anodized titanium implants when compared to electropolished stainless steel. Histological evaluation of rabbit tibia/implant interfaces indicate a favorable biological response. Cell culture studies suggest normal soft tissue adhesion patterns associated with anodized surfaces
Keywords :
adhesion; anodisation; bending; bone; corrosion; electrical resistivity; electrochemical analysis; fatigue; prosthetics; titanium; Ti; Ti implants; acid treatment; alkaline anodizing treatment; anodized surgical implants; anodizing treatments; biological response; cell culture; color; composition; electrochemical studies; enhanced corrosion resistance; film growth; film stability; histological evaluation; in vitro fretting corrosion; machined surface; neutral salt treatment; normal soft tissue adhesion patterns; notched specimens; oxide resistivity; rabbit tibia/implant interfaces; rotating bending fatigue data; smooth specimens; surface attributes; thickness; Conductivity; Corrosion; Immune system; Implants; Metals industry; Stability; Surface resistance; Surface treatment; Surgery; Titanium;
Conference_Titel :
Biomedical Engineering Conference, 1997., Proceedings of the 1997 Sixteenth Southern
Conference_Location :
Biloxi, MS
Print_ISBN :
0-7803-3869-3
DOI :
10.1109/SBEC.1997.583231
