Publication result 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

English Title

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

Type

WoS Article

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.

English 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

Key words in English

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.

RIV year

2021

Released

01.04.2021

Publisher

Elsevier

Location

Nizozemsko

ISBN

0301-679X

Periodical

Tribology International

Volume

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"
}

Documents

106874_accepted
Necas_AcceptedManuscript
Necas et al._ 106874_FINAL
SKV - Zdůvodnění a popis výsledku - Necas