Multiscale analysis of the tribological role of the molecular assemblies of synovial fluid. Case of a healthy joint and implants

Trunfio-Sfarghiu, Ana-Maria; Berthier, Yves; Meurisse, Marie-Hélène; Rieu, Jean-Paul

doi:10.1016/j.triboint.2007.02.008

Cited by 43 publications

(44 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present results demonstrate that the biological lubrication mechanism, facilitated by a 'lamellarrepulsive' process ( Fig. 2), is compatible with the presented data as well as those reported elsewhere [28,31,47,48]. [20,36]; c naturally degenerated surface 56.3° [10,11]; artificially partially depleted cartilage surface (D1) 56°[this work] and completely depleted cartilage surface (D2) 37°[this work] [15].…”

Section: Attempted Explanation Of the Lubrication Mechanism Of Jointssupporting

confidence: 92%

See 1 more Smart Citation

The Probable Explanation for the Low Friction of Natural Joints

Pawlak

Urbaniak

Hagner‐Derengowska

et al. 2014

Cell Biochem Biophys

View full text Add to dashboard Cite

The surface of an articular cartilage, coated with phospholipid (PL) bilayers, plays an important role in its lubrication and movement. Intact (normal) and depleted surfaces of the joint were modelled and the pH influence on the surface interfacial energy, wettability and friction were investigated. In the experiments, the deterioration of the PL bilayer was controlled by its wettability and the applied friction. The surrounding fluid of an undamaged articular cartilage, the synovial fluid, has a pH value of approximately 7.4. Buffer solutions were formulated to represent the synovial fluid with various pH values. It was found that the surface interfacial energy was stabilised at its lowest values when the pH varied between 6.5 and 9.5. These results suggested that as the PL bilayers deteriorated, the hydration repulsion mechanism became less effective as friction increased. The decreased number of bilayers changed the wettability and lowered PL lubricant properties.

show abstract

Section: Attempted Explanation Of the Lubrication Mechanism Of Jointssupporting

confidence: 92%

“…Nature essentially employs the same lubrication system in many parts of the body, where tissues slide over each other with their surfaces coated by surface-active phospholipids (SAPLs) [8,9,15,16,19,20,43]. These SAPLs have attracted considerable scientific interest and further research [2,6,14,27,33,35,36,47,48,52].…”

Section: Introductionmentioning

confidence: 99%

The Probable Explanation for the Low Friction of Natural Joints

Pawlak

Urbaniak

Hagner‐Derengowska

et al. 2014

Cell Biochem Biophys

View full text Add to dashboard Cite

show abstract

“…We use in this paper data from the experimental work of Trunfi o-Sfarghiu. 15 The equations are completed by the following initial and boundary conditions.…”

Section: Problem Definition and Governing Equationsmentioning

confidence: 99%

A general model for porous medium flow in squeezing film situations

Nabhani

Khlifi

Bou‐Saïd

2010

Lubrication Science

View full text Add to dashboard Cite

The present paper deals with a numerical investigation of the hydrodynamic lubrication of a porous squeeze fi lm between two circular discs. To this purpose, the thin fi lm (reduced) Navier Stokes equations and a generalised porous medium model are solved. The numerical results show that the effect of the porous disc is to reduce the lubricating properties of the fl uid fi lm. This effect is increased during the squeezing action. In addition, it is shown that the fi lm pressure, the load-carrying capacity and the velocity fi eld based only on the Darcy model are predicted higher than those obtained from the generalised porous medium model.

show abstract

“…Outstanding experiments presented in [26] showed that the CoF between two hydrogel surfaces imitating cartilage in the presence of lipid bilayers separated by a physiological salt solution (Fig. 6) but with no HA or albumin is as low as 0.0015.…”

Section: Lubrication In Synovial Jointsmentioning

confidence: 97%

“…Schematic representation of cartilage with an additional amorphous layer on its surface and a possible structure of the biphasic surface amorphous layer. Right: frictional pair of biobearings: two cartilage surfaces covered with an amorphous boundary layer are separated by a biolubricant (adapted from [26]). SZ -superficial tangential zone, MZmiddle zone, DZ -deep zone.…”

Section: Lubrication In Synovial Jointsmentioning

confidence: 99%

Biobearings: where mechanics meets biology

Hussainova¹,

Ghaemi²

2008

Proc. Estonian Acad. Sci.

View full text Add to dashboard Cite

This review paper deals with the operation of human joints which, from a mechanical point of view, can be regarded as bearings. The main problem in the studies of biobearings is separate consideration of the matter in different disciplines or areas of research. However, being a highly interdisciplinary field, biomechanics has to collect and apply knowledge from many branches of science. In this paper, the recent advances in tribology, organic chemistry, and tissue biology are reviewed and summarized to give a comprehensive vision of the state of the art in the performance of synovial joints. The emphasis is on the latest findings in lubrication mechanisms and their possible interactions.

show abstract

Multiscale analysis of the tribological role of the molecular assemblies of synovial fluid. Case of a healthy joint and implants

Cited by 43 publications

References 26 publications

The Probable Explanation for the Low Friction of Natural Joints

The Probable Explanation for the Low Friction of Natural Joints

A general model for porous medium flow in squeezing film situations

Biobearings: where mechanics meets biology

Contact Info

Product

Resources

About