Publication detail

Towards the Understanding of Lubrication Mechanisms in Total Knee Replacements – Part I: Experimental Investigations

NEČAS, D. VRBKA, M. MARIAN, M. ROTHAMMER, B. TREMMEL, S. WARTZACK, S. GALANDÁKOVÁ, A. GALLO, J. WIMMER, M. KŘUPKA, I. HARTL, M.

English title

Towards the Understanding of Lubrication Mechanisms in Total Knee Replacements – Part I: Experimental Investigations

Type

WoS Article

Language

en

Original abstract

This contribution is aimed at the detailed understanding of lubrication mechanisms within total knee replacement. While Part I is focused on the experimental investigation, Part II deals with the development of a predictive numerical model. Here, a knee simulator was used for direct optical observation of the contacts between a metal femoral and a transparent polymer components. Transient dynamic conditions were applied. Mimicked synovial fluids with fluorescently labelled constituents were used as the test lubricants. The results showed that γ-globulin forms thin boundary lubricating film, being reinforced by the interaction of phospholipids and hyaluronic acid. Further development of lubricating film is attributed to albumin layering. Based on the results, a novel lubrication model of the knee implant is proposed.

Keywords in English

Total knee replacement; Knee simulator; Fluorescent microscopy; Lubrication; Experiment

Released

2021-04-01

Publisher

Elsevier

Location

Nizozemsko

ISSN

0301-679X

Journal

Tribology International

Volume

156

Number

4

Pages from–to

106874–106874

Pages count

13

BIBTEX


@article{BUT167649,
  author="David {Nečas} and Martin {Vrbka} and Max {Marian} and Benedict {Rothammer} and Stephan {Tremmel} and Sandro {Wartzack} and Adéla {Galandáková} and Jiří {Gallo} and Markus A. {Wimmer} and Ivan {Křupka} and Martin {Hartl}",
  title="Towards the Understanding of Lubrication Mechanisms in Total Knee Replacements – Part I: Experimental Investigations",
  journal="Tribology International",
  year="2021",
  volume="156",
  number="4",
  pages="106874--106874",
  doi="10.1016/j.triboint.2021.106874",
  issn="0301-679X",
  url="https://www.sciencedirect.com/science/article/pii/S0301679X21000220"
}