Effect of rotational and sliding motions on friction and degeneration of articular cartilage under dry and wet friction

Cilingir, Ahmet C.

doi:10.1016/s1672-6529(14)60137-2

Cited by 17 publications

(11 citation statements)

References 43 publications

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“…Though the samples were removed from different animals, the values and trends of CoF were comparable; nevertheless, the deviation of CoF depended on the combination of friction samples, testing conditions, etc. A rise in CoF trends, which was shown in this study, has been known from other publications [38,[46][47][48][49][50][51][52][53][54][55][56][57][58][59][60], and the values of CoF were comparable depending on the processing conditions, configuration of specimens, and lubricants. A comparison of particle count trends showed that the ϒ-globulin protein clusters were wiped off faster from the contact than the albumin; thus, the lubrication film was formed especially by albumin clusters.…”

Section: Friction and Lubrication In Cartilage Contactsupporting

confidence: 87%

“…The number of "friction" studies is higher because the friction measurement methodology is better developed, and these works indicate well the understanding of the cartilage friction behavior. The behavior of cartilage lubricated by synovial fluid was presented in [51][52][53][54][55] showing that the synovial fluid reports a very low CoF. HA helps to lower CoF [54]; CoF grows with time [51,52,[54][55][56][57][58]; CoF decreases with a rising load [51,57,58]; CoF is influenced by the type of movement depending on the cartilage sampling [52,59]; and the cartilage rehydration has a positive impact on CoF [60].…”

Section: Introductionmentioning

confidence: 99%

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Biotribology of Synovial Cartilage: A New Method for Visualization of Lubricating Film and Simultaneous Measurement of the Friction Coefficient

et al. 2020

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A healthy natural synovial joint is very important for painless active movement of the natural musculoskeletal system. The right functioning of natural synovial joints ensures well lubricated contact surfaces with a very low friction coefficient and wear of cartilage tissue. The present paper deals with a new method for visualization of lubricating film with simultaneous measurements of the friction coefficient. This can contribute to better understanding of lubricating film formation in a natural synovial joint. A newly developed device, a reciprocating tribometer, is used to allow for simultaneous measurement of friction forces with contact visualization by fluorescence microscopy. The software allowing for snaps processing and subsequent evaluation of fluorescence records is developed. The evaluation software and the follow-up evaluation procedure are also described. The experiments with cartilage samples and model synovial fluid are carried out, and the new software is applied to provide their evaluation. The primary results explaining a connection between lubrication and friction are presented. The results show a more significant impact of albumin proteins on the lubrication process, whereas its clusters create a more stable lubrication layer. A decreasing trend of protein cluster count, which corresponds to a decrease in the thickness of the lubrication film, is found in all experiments. The results highlight a deeper connection between the cartilage friction and the lubrication film formation, which allows for better understanding of the cartilage lubrication mechanism.

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Section: Friction and Lubrication In Cartilage Contactsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Biotribology of Synovial Cartilage: A New Method for Visualization of Lubricating Film and Simultaneous Measurement of the Friction Coefficient

et al. 2020

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“…The samples were frozen in PBS at -20 °C after sampling. This practice is correct and verified by Shi et al (2011), Blum and Ovaert (2013), Cilingir (2015). The samples were unfrozen immediately before experiments.…”

Section: Samples and Experiments Conditionsmentioning

confidence: 79%

Development of reciprocating tribometer for testing synovial joint

2018

Engineering Mechanics

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The painless movement is very important in active life; therefore, the right function of our synovial joints is necessary. The synovial joints can be injured during human life in several ways. When the synovial joint is too damaged, change for the artificial joint follows. The artificial joint does not have long lifetime; therefore, the operation of the damaged joint is usually postponed by medical treatments (viscosuplementation). Scientists have to understand lubrication and wear processes to postpone the operation of the artificial joint. There are too many unanswered questions in this field. However, recently this field of science is becoming very popular and the number of publications is increasing. This article is a presentation of a new tribometer for research in biotribologic field. The new tribometer will allow us to do research on lubrication of the human joint cartilage. We will be able to observe the cartilage-on-glass contact and visualize the lubrication film. We will also be able to measure friction coefficient during the experiments. This conception of tribometer does not exist among conventional suppliers.

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“…The rolling velocity has a certain impact on the cartilage strain. It was reported that the friction coefficient increased first then became lower with the increase in the rolling velocity [ 32 – 34 ], leading to a rising and falling cartilage strain. This may be due to the cartilage viscoelasticity, which ensures that water can be continuously extruded under loading, causing changes in the friction coefficient and the strain values.…”

Section: Discussionmentioning

confidence: 99%

Experimental Study on the Mechanical Properties of Porcine Cartilage with Microdefect under Rolling Load

Men¹,

Chen

et al. 2017

Journal of Healthcare Engineering

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Objectives To investigate the mechanical responses of microdefect articular cartilage under rolling load and find out the failure rule. Methods Rolling load was applied to the porcine articular cartilage samples with rectangular notches of different depths. The displacement and strain near the notches were obtained by the noncontact digital image correlation technique. Results The strain value and peak frequency around the notch increased; the maximum equivalent strain value could be observed at both bottom corners of the notch; the equivalent strain value first increased and then decreased at the points in the superficial and middle layers with the increase of rolling velocity; the points in the deep layer were less affected by rolling velocity; the equivalent strain value of the points in the superficial layer declined after rising with the increase of defect depth, while a decreased trend could be found for the points in the middle and deep layers. Conclusions The shear strain, which rose with the increase in defect depth, was the main factor in cartilage destruction. The cartilage tended to be destructed firstly at the bottom corner of the defect. Rolling velocity showed significant effects on superficial and middle layers. Cartilage had the ability to resist destruction.

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Effect of rotational and sliding motions on friction and degeneration of articular cartilage under dry and wet friction

Cited by 17 publications

References 43 publications

Biotribology of Synovial Cartilage: A New Method for Visualization of Lubricating Film and Simultaneous Measurement of the Friction Coefficient

Biotribology of Synovial Cartilage: A New Method for Visualization of Lubricating Film and Simultaneous Measurement of the Friction Coefficient

Development of reciprocating tribometer for testing synovial joint

Experimental Study on the Mechanical Properties of Porcine Cartilage with Microdefect under Rolling Load

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