Some new evidence on human joint lubrication.

Annals of the Rheumatic Diseases
A UnsworthV Wright

Abstract

Theoretical consideration has been given to the use of pendulum machines which are used to examine the frictional properties of human joints by incorporating them as fulcra. As a result, a new type of pendulum machine has been built which incorporates the facility to apply sudden loads to the joint on starting the swinging motion, and also the ability to measure directly the frictional torque experienced by the joint. The results obtained from natural hip joints indicate the presence of squeeze film lubrication under conditions of sudden loading of a joint. In addition, a self-generated fluid film process was observed at low loads while at higher loads boundary lubrication appeared to be important. These results have been used to describe the lubrication regimens occurring in a normal activity such as walking. A single experiment carried out on a hip from a patient suffering from severe rheumatoid arthritis has also been reported and the frictional resistance was seen to be increased fifteenfold compared to a normal hip.

References

Nov 1, 1968·Annals of the Rheumatic Diseases·P S WalkerV Wright
Jan 1, 1966·Physics in Medicine and Biology·R I Tanner
Aug 1, 1968·Journal of Biomechanics·F C Linn

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Citations

Jul 1, 1989·Biomaterials·S E CliftA Hayes
Dec 20, 1975·British Medical Journal
May 27, 2008·Journal of Biomechanics·Jason P Gleghorn, Lawrence J Bonassar
May 1, 1991·Journal of Biomedical Engineering·J BlameyR Dawber
Mar 7, 2014·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Kenneth R St John
Dec 7, 2007·Journal of Biomechanics·Jeffrey M ColesStefan Zauscher
Jun 17, 2005·Journal of Biomechanics·Ramaswamy KrishnanGerard A Ateshian
Jan 1, 1981·Seminars in Arthritis and Rheumatism·C F Ilardi, L Sokoloff
Feb 26, 2016·Veterinary Surgery : VS·Kirsty A HusbyJames L Cook
Apr 22, 2004·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Ramaswamy KrishnanGerard A Ateshian
May 11, 2016·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Anthony Unsworth
Nov 29, 2015·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Teruo MurakamiAtsushi Suzuki
Jul 1, 1983·Engineering in Medicine·A Unsworth
Jul 1, 1988·Engineering in Medicine·A UnsworthG White
Jun 4, 2005·Arthritis and Rheumatism·Farshid Guilak
Mar 27, 2019·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Stefan LazicRichard E Field
Dec 12, 2019·Journal of Biomechanical Engineering·Ali Shegaf, Andrew Speirs
Jun 2, 2007·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·J J CriscoG D Jay
Nov 6, 1998·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·H HigakiY Iwamoto
Apr 8, 1998·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·T MurakamiY Nakanishi
Mar 22, 2002·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·F P QuigleyC Birkinshaw
Mar 22, 2013·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Sang-Soo LeeSeonghun Park
Oct 13, 2020·Proceedings. Biological Sciences·Alberto E MinettiGaspare Pavei
Jan 1, 1991·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·D DowsonB Jobbins
Apr 12, 2005·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·S C ScholesN Smith
May 29, 2018·Matrix Biology : Journal of the International Society for Matrix Biology·Yamini Krishnan, Alan J Grodzinsky
Sep 2, 2021·Biomechanics and Modeling in Mechanobiology·M ArjmandiA Thambyah

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