Publication detail

Analysis of Friction in Total Knee Prosthesis during a Standard Gait Cycle

RANUŠA, M. WIMMER, M. FULLAM, S. VRBKA, M. KŘUPKA, I.

Original Title

Analysis of Friction in Total Knee Prosthesis during a Standard Gait Cycle

Type

journal article in Web of Science

Language

English

Original Abstract

Total knee arthroplasty is on the rise worldwide. Despite its success, revision surgeries are also increasing. According to the American Joint Replacement Registry 2020, 3.3% of revision surgeries are due to wear, and 24.2% are due to mechanical loosening. The combination of shear stresses and wear particles occurring at the bone/implant interface can lead to local osteolysis. Although the shear stresses are partially driven by joint friction, relatively little is known about the evolution of the coefficient of friction (CoF) during a gait cycle in total knee replacement. Here we describe the CoF during a gait cycle and investigate its association with kinematics (slide–roll-ratio), applied load, and relative velocity. The artificial knee was simulated by cobalt–chromium condyle on a flat ultra-high-molecular-weight polyethylene (UHMWPE) tibial plateau, lubricated by either water or proteinaceous solution. We found that the CoF is not a constant but fluctuates between the values close to 0 and 0.15. Cross-correlation suggested that this is primarily an effect of the slide–roll ratio and the contact pressure. There was no difference in the CoF between water and proteinaceous solution. Knowledge about the CoF behavior during a gait cycle will help to increase the accuracy of future computational models of total knee replacement.

Keywords

lubrication; knee prostheses; friction measurement/testing; gait analysis; UHMWPE

Authors

RANUŠA, M.; WIMMER, M.; FULLAM, S.; VRBKA, M.; KŘUPKA, I.

Released

3. 4. 2021

Publisher

MDPI

Location

4052 Basel, Switzerland

ISBN

2075-4442

Periodical

Lubricants

Year of study

9

Number

4

State

Swiss Confederation

Pages from

1

Pages to

14

Pages count

14

URL

https://www.mdpi.com/2075-4442/9/4/36

Full text in the Digital Library

http://hdl.handle.net/11012/201669

BibTex

@article{BUT172490,
  author="Matúš {Ranuša} and Markus A. {Wimmer} and Spencer {Fullam} and Martin {Vrbka} and Ivan {Křupka}",
  title="Analysis of Friction in Total Knee Prosthesis during a Standard Gait Cycle",
  journal="Lubricants",
  year="2021",
  volume="9",
  number="4",
  pages="1--14",
  doi="10.3390/lubricants9040036",
  issn="2075-4442",
  url="https://www.mdpi.com/2075-4442/9/4/36"
}