Publication detail

Development of lubrication film and influence on friction in a total knee replacement during a gait cycle

ODEHNAL, L. RANUŠA, M. WIMMER, M. VRBKA, M. KŘUPKA, I.

English title

Development of lubrication film and influence on friction in a total knee replacement during a gait cycle

Type

journal article in Web of Science

Language

en

Original abstract

The presented study dealt with the experimental analysis of friction and lubrication mechanism observed with fluorescent microscopy in total knee replacement represented by CoCrMo wheel and PMMA plate. Model synovial fluid with marked constituents was used as test lubricant. The experiments investigated three main parameters. Slide-roll-ratio (SRR) showed the greatest influence on lubrication film formation. Friction coefficient was mostly influenced by axial load; its increase led to a decrease in friction. Relative speed was manifested for SRR 1.25 and higher where its increase caused a decrease in friction. The complex experiment showed a development of friction coefficient and lubrication film along the whole gait cycle. The results of this experiment correspond with the initial results concerning the influences of parameters.

English abstract

The presented study dealt with the experimental analysis of friction and lubrication mechanism observed with fluorescent microscopy in total knee replacement represented by CoCrMo wheel and PMMA plate. Model synovial fluid with marked constituents was used as test lubricant. The experiments investigated three main parameters. Slide-roll-ratio (SRR) showed the greatest influence on lubrication film formation. Friction coefficient was mostly influenced by axial load; its increase led to a decrease in friction. Relative speed was manifested for SRR 1.25 and higher where its increase caused a decrease in friction. The complex experiment showed a development of friction coefficient and lubrication film along the whole gait cycle. The results of this experiment correspond with the initial results concerning the influences of parameters.

Keywords in English

Total knee replacement; Friction coefficient; Lubrication film development; Fluorescent microscopy

Released

01.02.2023

Publisher

Elsevier

ISSN

0301-679X

Volume

178

Number

Únor

Pages from–to

108073–108073

Pages count

9

BIBTEX


@article{BUT180063,
  author="Lukáš {Odehnal} and Matúš {Ranuša} and Markus A. {Wimmer} and Martin {Vrbka} and Ivan {Křupka},
  title="Development of lubrication film and influence on friction in a total knee replacement during a gait cycle",
  year="2023",
  volume="178",
  number="Únor",
  month="February",
  pages="108073--108073",
  publisher="Elsevier",
  issn="0301-679X"
}