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.

Original Title

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

Type

journal article in Web of Science

Language

English

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

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

Authors

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

Released

1. 4. 2021

Publisher

Elsevier

Location

Nizozemsko

ISBN

0301-679X

Periodical

Tribology International

Year of study

156

Number

4

State

United Kingdom of Great Britain and Northern Ireland

Pages from

106874

Pages to

106874

Pages count

13

URL

https://www.sciencedirect.com/science/article/pii/S0301679X21000220

Full text in the Digital Library

http://hdl.handle.net/11012/202991

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"
}