Surface modification of titanium alloy implants.
Hip replacement stems manufactured from Ti6Al4V titanium alloy were surface treated in one of four ways and tested for dissolution resistance in bovine serum. Those stems treated thermally were found to have significantly lower metal ion release compared with those receiving standard commercial treatments. The improved dissolution behaviour is associated with a change in the surface oxide structure from mixed titanium oxides to a more stable rutile structure.
Engineering Materials Department, University of Southampton, UK.
M
M
Browne
P J
PJ
Gregson
D000327:Adsorption; D000497:Alloys / Q000009:adverse effects / Q000737:chemistry / Q000493:pharmacokinetics; D000535:Aluminum / Q000493:pharmacokinetics; D000818:Animals; D001672:Biocompatible Materials / Q000009:adverse effects / Q000737:chemistry / Q000493:pharmacokinetics; D002417:Cattle; D003343:Corrosion; D006622:Hip Prosthesis / Q000009:adverse effects; D006801:Humans; D066298:In Vitro Techniques; D008422:Materials Testing; D010084:Oxidation-Reduction; D019736:Prostheses and Implants / Q000009:adverse effects; D013499:Surface Properties; D014025:Titanium / Q000009:adverse effects / Q000737:chemistry / Q000493:pharmacokinetics
D000497:Alloys; D001672:Biocompatible Materials; C031462:titanium alloy (TiAl6V4); D000535:Aluminum; D014025:Titanium