Volume 106, Issue 3 pp. 1028-1037
Original Research Report

Wear resistance of poly(2-methacryloyloxyethyl phosphorylcholine)-grafted carbon fiber reinforced poly(ether ether ketone) liners against metal and ceramic femoral heads

Shihori Yamane

Shihori Yamane

Department of Materials Engineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8656 Japan

Division of Science for Joint Reconstruction, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655 Japan

Medical R&D Center, Corporate R&D Group, KYOCERA Corporation, Yodogawa-ku, Osaka, 532-0003 Japan

Search for more papers by this author
Masayuki Kyomoto

Masayuki Kyomoto

Department of Materials Engineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8656 Japan

Division of Science for Joint Reconstruction, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655 Japan

Medical R&D Center, Corporate R&D Group, KYOCERA Corporation, Yodogawa-ku, Osaka, 532-0003 Japan

Search for more papers by this author
Toru Moro

Toru Moro

Division of Science for Joint Reconstruction, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655 Japan

Search for more papers by this author
Masami Hashimoto

Masami Hashimoto

Materials Research and Development Laboratory, Japan Fine Ceramics Center, Atsuta-ku, Nagoya, 456-8587 Japan

Search for more papers by this author
Yoshio Takatori

Yoshio Takatori

Division of Science for Joint Reconstruction, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655 Japan

Search for more papers by this author
Sakae Tanaka

Sakae Tanaka

Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655 Japan

Search for more papers by this author
Kazuhiko Ishihara

Corresponding Author

Kazuhiko Ishihara

Department of Materials Engineering, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8656 Japan

Correspondence to: K. Ishihara, e-mail: [email protected]Search for more papers by this author
First published: 09 May 2017
Citations: 16

Abstract

Younger, active patients who undergo total hip arthroplasty (THA) have increasing needs for wider range of motion and improved stability of the joint. Therefore, bearing materials having not only higher wear resistance but also mechanical strength are required. Carbon fiber-reinforced poly(ether ether ketone) (CFR-PEEK) is known as a super engineering plastic that has great mechanical strength. In this study, we focused on poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC)-grafted CFR-PEEK and investigated the effects of PMPC grafting and the femoral heads materials on the wear properties of CFR-PEEK liners. Compared with untreated CFR-PEEK, the PMPC-grafted CFR-PEEK surface revealed higher wettability and lower friction properties under aqueous circumstances. In the hip simulator wear test, wear particles generated from the PMPC-grafted CFR-PEEK liners were fewer than those of the untreated CFR-PEEK liners. There were no significant differences in the size and the morphology of the wear particles between the differences of PMPC-grafting and the counter femoral heads. Zirconia-toughened alumina (ZTA) femoral heads had significantly smoother surfaces compared to cobalt–chromium–molybdenum alloy femoral heads after the hip simulator test. Thus, we conclude that the bearing combination of the PMPC-grafted CFR-PEEK liner and ZTA head is expected to be a lifelong bearing interface in THA. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1028–1037, 2018.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.