Frictional Behavior of Artificial Cartilage Materials Lubricated with Synovia Constituents

Yoshinori Sawae, Teruo Murakami, Hidehiko Higaki, Shigeaki Moriyama

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The frictional behavior of candidate materials for artificial cartilage lubricated with constituents of synovia was examined in the one-directional sliding test and the knee joint simulator test. Artificial cartilage materials were used to preserve the fluid film between articulating surfaces by soft elastohydrodynamic lubrication (EHL), and to overcome tribological problems, such as loosening and wear, in total knee prostheses. However, some of them exhibited unacceptable high friction in the mixed lubrication region. In this study, we tested polyvinylalcohol (PVA) hydrogels and polyurethanes (PU) as artificial cartilage, and compared their frictional behavior with an ultrahigh molecular weight polyethylene (UHMWPE). Solutions of the sodium hyaluronate (HA) were used as lubricants, and serum proteins were added to examine their effects on the frictional behavior. As a result, the PVA hydrogel, which has high water content, showed favorable frictional behavior under the thin film condition, and serum proteins functioned as boundary lubricants. The artificial knee joint model with a PVA hydrogel (high water content) as arificial cartilage exhibited excellent frictional behavior during walking when it was lubricated by the HA solution with serum proteins.

Original languageEnglish
Pages (from-to)3665-3671
Number of pages7
Journaltransactions of the japan society of mechanical engineers series c
Volume61
Issue number589
DOIs
Publication statusPublished - Jan 1 1995
Externally publishedYes

Fingerprint

Cartilage
Hydrogels
Proteins
Water content
Lubricants
Knee prostheses
Elastohydrodynamic lubrication
Ultrahigh molecular weight polyethylenes
Polyurethanes
Lubrication
Simulators
Sodium
Wear of materials
Friction
Thin films
Fluids

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Frictional Behavior of Artificial Cartilage Materials Lubricated with Synovia Constituents. / Sawae, Yoshinori; Murakami, Teruo; Higaki, Hidehiko; Moriyama, Shigeaki.

In: transactions of the japan society of mechanical engineers series c, Vol. 61, No. 589, 01.01.1995, p. 3665-3671.

Research output: Contribution to journalArticle

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