On the replacement of articular cartilage: The friction of PVA hydrogel layer in hip simulator test

David Nečas, Seido Yarimitsu, David Rebenda, Hironori Shinmori, Martin Vrbka, Yoshinori Sawae, Teruo Murakami, Ivan Křupka

Research output: Contribution to journalArticlepeer-review

Abstract

The present study focuses on friction evaluation of the polyvinyl alcohol (PVA) hydrogel layer, an anticipative material for cartilage replacement. The experiments were carried out in a ball-in-socket configuration using a pendulum hip simulator. The friction coefficients of ceramic-on-hydrogel pairs were compared with those of commercial implants (metal/ceramic heads vs UHMWPE, HXPE and metal/ceramic sockets). The effects of hydrogel ageing and hydration were studied, among others. The use of PVA inserts caused up to 98% reduction in friction coefficient compared to original hip pairs. The application of PVA for local or even complete cartilage replacement seems to be an outstanding opportunity in implantology.

Original languageEnglish
Article number108100
JournalTribology International
Volume178
DOIs
Publication statusPublished - Feb 2023

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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