Detail publikace

The effect of synovial fluid composition, speed and load on frictional behaviour of articular cartilage

FURMANN, D. NEČAS, D. REBENDA, D. ČÍPEK, P. VRBKA, M. KŘUPKA, I. HARTL, M.

Originální název

The effect of synovial fluid composition, speed and load on frictional behaviour of articular cartilage

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Articular cartilage ensures smooth motion of natural synovial joints operating at very low friction. However, number of patients suffering from joint diseases, usually associated with cartilage degradation, continuously increases. Therefore, an understanding of cartilage tribological behaviour is of great interest in order to minimize its degradation, preserving the reliable function of the joints. The aim of the present study is to provide a comprehensive comparison of frictional behaviour of articular cartilage, focusing on the effect of synovial fluid composition (i), speed (ii), and load (iii). The experiments were realized using pin-on-plate tribometer with reciprocating motion. The articular cartilage pin was loaded against smooth glass plate while the tests consisted of loading and unloading phases in order to enable cartilage rehydration. Various model fluids containing albumin, γ-globulin, hyaluronic acid, and phospholipids were prepared in two different concentrations simulating physiologic and osteoarthritic synovial fluid. Two different speeds, 5 mm/s and 10 mm/s were applied and the tests were carried out under 5 N and 10 N. It was found that protein based solutions exhibit nearly no difference in friction coefficient, independently of the concentration of the constituents. However, the behaviour is considerably changed when adding hyaluronic acid and phospholipids. Especially when interacting with γ-globulin, friction coefficient decreased substantially. In general, an important role of the interaction of fluid constituents was observed. On the other hand, a limited effect of speed was detected for most of the model fluids. Finally, it was shown that elevated load leads to lower friction which well corresponds to previous observations. Further study should concentrate on specific explored phenomena focusing on the detailed statistical evaluation.

Klíčová slova

Biotribology; articular cartilage; coefficient of friction; tribological properties; synovial fluid

Autoři

FURMANN, D.; NEČAS, D.; REBENDA, D.; ČÍPEK, P.; VRBKA, M.; KŘUPKA, I.; HARTL, M.

Vydáno

15. 3. 2020

Nakladatel

MDPI

Místo

Basilej, Švýcarsko

ISSN

1996-1944

Periodikum

Materials

Ročník

13

Číslo

6

Stát

Švýcarská konfederace

Strany od

1

Strany do

16

Strany počet

16

URL

https://www.mdpi.com/1996-1944/13/6/1334

Plný text v Digitální knihovně

http://hdl.handle.net/11012/186580

BibTex

@article{BUT162725,
  author="FURMANN, D. and NEČAS, D. and REBENDA, D. and ČÍPEK, P. and VRBKA, M. and KŘUPKA, I. and HARTL, M.",
  title="The effect of synovial fluid composition, speed and load on frictional behaviour of articular cartilage",
  journal="Materials",
  year="2020",
  volume="13",
  number="6",
  pages="1--16",
  doi="10.3390/ma13061334",
  issn="1996-1944",
  url="https://www.mdpi.com/1996-1944/13/6/1334"
}