Evaluation of wear resistance of cross-linked ultra-high molecular weight polyethylene for joint prostheses in the multi-directional pin-on-plate apparatus

T. Sawano, T. Murakami, Y. Sawae

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Gamma irradiation is used as a sterilization method for joint prosthesis. For this procedure, gamma irradiation causes crosslinking of UHMWPE. Crosslinked UHMWPE molecules connect each other strongly. However gamma irradiation causes the reduction in mechanical properties such as tensile strength and elongation because primary chain scission occurrs. Therefore, excessive irradiation would cause some problems. We suggest the existence of the optimum dose for minimum wear and moderate reduction in tensile strength and elongation. Furthermore we indicate a mechanism of wear resistance of gamma irradiated UHMWPE.

Original languageEnglish
Title of host publicationProceedings of the World Tribology Congress III - 2005
Pages657-658
Number of pages2
Publication statusPublished - Dec 1 2005
Event2005 World Tribology Congress III - Washington, D.C., United States
Duration: Sep 12 2005Sep 16 2005

Publication series

NameProceedings of the World Tribology Congress III - 2005

Other

Other2005 World Tribology Congress III
CountryUnited States
CityWashington, D.C.
Period9/12/059/16/05

Fingerprint

Joint prostheses
Ultrahigh molecular weight polyethylenes
Wear resistance
Irradiation
Elongation
Tensile strength
Crosslinking
Wear of materials
Mechanical properties
Molecules

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Sawano, T., Murakami, T., & Sawae, Y. (2005). Evaluation of wear resistance of cross-linked ultra-high molecular weight polyethylene for joint prostheses in the multi-directional pin-on-plate apparatus. In Proceedings of the World Tribology Congress III - 2005 (pp. 657-658). (Proceedings of the World Tribology Congress III - 2005).

Evaluation of wear resistance of cross-linked ultra-high molecular weight polyethylene for joint prostheses in the multi-directional pin-on-plate apparatus. / Sawano, T.; Murakami, T.; Sawae, Y.

Proceedings of the World Tribology Congress III - 2005. 2005. p. 657-658 (Proceedings of the World Tribology Congress III - 2005).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sawano, T, Murakami, T & Sawae, Y 2005, Evaluation of wear resistance of cross-linked ultra-high molecular weight polyethylene for joint prostheses in the multi-directional pin-on-plate apparatus. in Proceedings of the World Tribology Congress III - 2005. Proceedings of the World Tribology Congress III - 2005, pp. 657-658, 2005 World Tribology Congress III, Washington, D.C., United States, 9/12/05.
Sawano T, Murakami T, Sawae Y. Evaluation of wear resistance of cross-linked ultra-high molecular weight polyethylene for joint prostheses in the multi-directional pin-on-plate apparatus. In Proceedings of the World Tribology Congress III - 2005. 2005. p. 657-658. (Proceedings of the World Tribology Congress III - 2005).
Sawano, T. ; Murakami, T. ; Sawae, Y. / Evaluation of wear resistance of cross-linked ultra-high molecular weight polyethylene for joint prostheses in the multi-directional pin-on-plate apparatus. Proceedings of the World Tribology Congress III - 2005. 2005. pp. 657-658 (Proceedings of the World Tribology Congress III - 2005).
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