Influence of different CoCrMo counterfaces on wear in UHMWPE for artificial joints
- 1
- 2
- 3
- 4
- 5
- 6
- 7
Abstract
Wear tests were carried out to study the effect of various counterface materials in the wear behaviour of Ultra High Molecular Weight Polyethylene (UHMWPE). The materials used as counterfaces were based on varieties of CoCrMo: 1) forged (hand-polished) CoCrMo, 2) forged (mass-finished) CoCrMo, and 3) cast (mass-finished) CoCrMo. Addi-tionally, two coatings were proposed: 1) a CoCrMo coating applied to the forged CoCrMo alloy by means of physical vapour deposition (PVD), and 2) a ZrO2 coating applied to the forged CoCrMo alloy by means of plasma-assisted chemical vapour deposition (PACVD). The reciprocating pin-on-flat (RPOF) de-vice for pin-on-disk wear testing was used for this study. The worn surfaces were observed using optical, atomic force and scanning electron microscopes.
- Wang, A., Stark, C. and Dumbleton, J.H. (1996) Mechanistic and morphological origins of ultra-high molecular weight polyethylene wear debris in total joint replacement prostheses. Proceedings of the Institution of Mechanical Engineers, Part H: Journal if Engineering in Medicine, 210, 141-156. doi:10.1243/PIME_PROC_1996_210_407_02
- Murray, D. and Rushton, N. (1990) Macrophages stimu- late bone resorption when they phagocytose particles. Journal of Bone and Joint Surgery, 72-B, 988-992.
- Howie, D. and McGee, M. (1996) Wear and osteolysis in relation to prostheses design and materials. Medical Applications of Titanium and its Alloys, ASTM STP 1272, 234-239.
- Essner, A., Schmidig, G. and Wang, A. (2005) The clinical relevance of hip joint simulator testing: In vitro and in vivo comparisons. Wear, 259, 882-886. doi:10.1016/j.wear.2005.02.105
- McGee, M., Howie, D., Neale, S., Haynes, D. and Pearcy, M. (1997) The role of polyethylene wear in joint replacement failure. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 211, 65-72. doi:10.1243/0954411971534692
- Green, T., Fisher, J., Stone, M., Wroblewski, B. and Ingham, E. (1998) Polyethylene particles of a ‘critical size’ are necessary for the induction of cytokines by macrophages in vitro. Biomaterials, 19, 2297-2302. doi:10.1016/S0142-9612(98)00140-9
- Sajewicz, E. (2006) On evaluation of wear resistance of tooth enamel and dental materials. Wear, 260, 1256-1261. doi:10.1016/j.wear.2005.08.010
- Saikko, V. A. (1998) Multidirectional motion pin-on-disk wear test method for prosthetic joint materials. Journal of Biomedical Materials Research, 41, 58-64. doi:10.1002/(SICI)1097-4636(199807)41:1 3.0.CO;2-P
- Wallbridge, N. and Dowson, D. (1998) The walking activity of patients with artificial hip joints. Engineering in Medicine, 11, 95-96. doi:10.1243/EMED_JOUR_1982_011_023_02
- Wang, A., Polineni, V., Essner, A., Stark, C. and Dumbleton, J. (1998) The impact of lubricant protein concentration on the outcome of hip joint simulator wear testing. 24th Annual Meeting of the Society for Biomaterials, San Diego, 22-26 April 1998.
- Gil, F.J. and Planell, J.A. (1999) Effect of copper addition on the superelastic behavior of Ni-Ti shape memory alloys for orthodontic applications. Journal of Biomedical Materials Research, 48, 682-688. doi:10.1002/(SICI)1097-4636(1999)48:5 3.0.CO;2-M