Novel Multilayer Coatings on Polyethylene for Acetabular Devices

Abstract:

Article Preview

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 et al., "Novel Multilayer Coatings on Polyethylene for Acetabular Devices", Materials Science Forum, Vols. 514-516, pp. 868-871, 2006

Online since:

May 2006

Export:

Price:

$35.00

[1] B. Ratner, A. Hoffman, F. Schoen, J. Lemons: Biomaterial Science - An Introduction to Materials in Medicine (Academic Press, 1996).

[2] A.S. Turner: European Cells and Materials, Vol. 1 (2001), p.66.

[3] S. Affatato, G. Bersaglia, M. Rocchi, P. Taddei, C. Fagnano, A. Toni,: Biomaterials, Vol 26, Numb. 16 (2005) p.3259.

DOI: 10.1016/j.biomaterials.2004.07.070

[4] J. Clohisy, G. Calvert, F. Tull, D. McDonald, W. Maloney,: Clin Orthop Relat Res; Vol. 429 (2004), p.188.

[5] M. Cartier,: Revue Surfaces, Vol. 276 (1998), p.27.

[6] T. Sudarshan, J. Braza,: Surface Modification Technologies V Proceedings of the Fifth International Conference Held in Birmingham (The Institute of Materials, UK 1992).

[7] G. Xu, Y. Hibino, M. Aoki, K. Awazu, M. Tanihara, Y. Imanishi,: Colloids Surf B Biointerfaces, Vol. 19, Numb 3 (2000), p.249 b) a).

In order to see related information, you need to Login.