Paper Title:
Novel Multilayer Coatings on Polyethylene for Acetabular Devices
  Abstract

Total hip replacement is a common practice in every day clinical work. Artificial hip implants consist of a femoral component and an acetabular component. Nowadays the acetabular component is composed of a polymeric cup and a metallic shell. This study focuses the development of an innovative acetabular component substituting the metallic shell by a multilayer coating on the acetabular cup. A titanium coating was deposited onto ultra-high molecular weight polyethylene (UHMWPE) samples by physical vapour deposition (PVD), having an in situ pretreatment with argon ion bombardment in order to optimize the adhesive strength by surface modification, followed by the deposition of a thin film of hydroxyapatite (HA) using rf magnetron sputtering technique, at room temperature. Results obtained seem to indicate that these multilayer coatings can be a viable alternative to the metallic shell, leading to the substitution of a two part for a one part acetabular component.

  Info
Periodical
Materials Science Forum (Volumes 514-516)
Edited by
Paula Maria Vilarinho
Pages
868-871
DOI
10.4028/www.scientific.net/MSF.514-516.868
Citation
V. Santos, J. P. Borges, C. M.S. Ranito, E. Pires, H. F. Araújo, A. Marques, L. Tomás, E. Fortunato, R. Martins, Y. Nunes, "Novel Multilayer Coatings on Polyethylene for Acetabular Devices", Materials Science Forum, Vols. 514-516, pp. 868-871, 2006
Online since
May 2006
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Price
$32.00
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