Generic Modeling of Contact and Fluid Pressures in Human Knee Joint for a Subpopulation

Deng, RuoQi; Li, LePing

doi:10.1007/978-3-031-55315-8_14

Lecture Notes in Computational Vision and Biomechanics

2024

DOI: 10.1007/978-3-031-55315-8_14

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Generic Modeling of Contact and Fluid Pressures in Human Knee Joint for a Subpopulation

RuoQi Deng,

LePing Li

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2024

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Cited by 2 publications

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Statistical Shape Modeling to Determine Poromechanics of the Human Knee Joint

Deng,

Bruce,

Gibbons

et al. 2024

Ann Biomed Eng

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Statistical Shape Modeling to Determine Poromechanics of the Human Knee Joint

Deng,

Bruce,

Gibbons

et al. 2024

Ann Biomed Eng

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Impact of knee geometry on joint contact mechanics after meniscectomy

Deng,

Uzuner,

2024

Sci Rep

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Finite element modeling has served as a cornerstone in understanding knee joint mechanics post-meniscectomy, yet the influence of varying knee geometries remains unknown. The present study aimed to fill that gap by employing statistical shape modeling to generate knee models from MRI data of 31 human knees, capturing the population’s knee size and shape variations. Finite element simulations were conducted to replicate intact, partial, and total medial meniscectomy conditions during standing. The results revealed a substantial shift in load distribution from the medial to lateral compartment following medial meniscectomy with its magnitude depending on knee geometry. Cartilages experienced variable degrees of pressure changes at different sites, which could also be different for fluid and contact pressures. While changes in joint size led to somewhat predictable alterations in contact pressure, variations in joint shape resulted in unexpected changes in contact and fluid pressures, emphasizing the need for computational simulations. The average knee geometry exhibited the lowest contact and fluid pressures under the given loading and boundary conditions, in contrast to knees with shapes deviating from the average. This study highlights the significance of individual knee shape in the biomechanical outcome of meniscectomy, potentially explaining the variability in clinical outcomes observed post-surgery. Supplementary Information The online version contains supplementary material available at 10.1038/s41598-024-79662-y.

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Generic Modeling of Contact and Fluid Pressures in Human Knee Joint for a Subpopulation

Cited by 2 publications

References 20 publications

Statistical Shape Modeling to Determine Poromechanics of the Human Knee Joint

Statistical Shape Modeling to Determine Poromechanics of the Human Knee Joint

Impact of knee geometry on joint contact mechanics after meniscectomy

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