Evaluation of Wear Characteristics of Artificial Joint Materials in the Multi-Directional Pin-on-Plate Tester

Takanori Sawano; Teruo Murakami; Yoshinori Sawae; Takahiro Kadota

doi:10.1299/kikaic.69.1892

Evaluation of Wear Characteristics of Artificial Joint Materials in the Multi-Directional Pin-on-Plate Tester

Takanori Sawano, Teruo Murakami, Yoshinori Sawae, Takahiro Kadota

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

For the tribological evaluation of artificial joint materials, it is important that in vitro wear characteristics should correspond to the wear in vivo. As the first screening test of new materials, current simple test methods such as unidirectional pin-on-disk and reciprocating pin-on-plate tests are imperfect to simulate the physiological motion. Therefore, we developed a new type of multi-directional pin-on-plate tester to reflect the three-dimensional motion in human joint, In this tester, the friction path is controlled by the movement of pin specimen with the programmable data. Value of UHMWPE wear rate can be 1-5×10^-7mm³/N·m for two arcs paths in this tester, while that is 1-5×10^-8mm³/N·m in traditional tester which is significantly underestimated in comparison with clinical wear rate. The superiority of ceramics for wear rate to metallic materials was confirmed as indicated for clinical results. Additionally, it was shown that new type of mating materials can improve UHMWPE wear rate compared with traditional materials.

Original language	English
Pages (from-to)	1892-1899
Number of pages	8
Journal	Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume	69
Issue number	7
DOIs	https://doi.org/10.1299/kikaic.69.1892
Publication status	Published - Jul 2003
Externally published	Yes

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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Evaluation of Wear Characteristics of Artificial Joint Materials in the Multi-Directional Pin-on-Plate Tester. / Sawano, Takanori; Murakami, Teruo; Sawae, Yoshinori et al.
In: Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Vol. 69, No. 7, 07.2003, p. 1892-1899.

Research output: Contribution to journal › Article › peer-review

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abstract = "For the tribological evaluation of artificial joint materials, it is important that in vitro wear characteristics should correspond to the wear in vivo. As the first screening test of new materials, current simple test methods such as unidirectional pin-on-disk and reciprocating pin-on-plate tests are imperfect to simulate the physiological motion. Therefore, we developed a new type of multi-directional pin-on-plate tester to reflect the three-dimensional motion in human joint, In this tester, the friction path is controlled by the movement of pin specimen with the programmable data. Value of UHMWPE wear rate can be 1-5×10-7mm3/N·m for two arcs paths in this tester, while that is 1-5×10-8mm3/N·m in traditional tester which is significantly underestimated in comparison with clinical wear rate. The superiority of ceramics for wear rate to metallic materials was confirmed as indicated for clinical results. Additionally, it was shown that new type of mating materials can improve UHMWPE wear rate compared with traditional materials.",

author = "Takanori Sawano and Teruo Murakami and Yoshinori Sawae and Takahiro Kadota",

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AU - Kadota, Takahiro

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AB - For the tribological evaluation of artificial joint materials, it is important that in vitro wear characteristics should correspond to the wear in vivo. As the first screening test of new materials, current simple test methods such as unidirectional pin-on-disk and reciprocating pin-on-plate tests are imperfect to simulate the physiological motion. Therefore, we developed a new type of multi-directional pin-on-plate tester to reflect the three-dimensional motion in human joint, In this tester, the friction path is controlled by the movement of pin specimen with the programmable data. Value of UHMWPE wear rate can be 1-5×10-7mm3/N·m for two arcs paths in this tester, while that is 1-5×10-8mm3/N·m in traditional tester which is significantly underestimated in comparison with clinical wear rate. The superiority of ceramics for wear rate to metallic materials was confirmed as indicated for clinical results. Additionally, it was shown that new type of mating materials can improve UHMWPE wear rate compared with traditional materials.

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Evaluation of Wear Characteristics of Artificial Joint Materials in the Multi-Directional Pin-on-Plate Tester

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