Computational Poromechanics in Knee Joint Biomechanics and Pipe-Soil Interaction
Contact Models of Human and Porcine Knee Joints
The unique feature of our knee joint model is the inclusion of fluid phase in articular cartilages and menisci using a fibril-reinforced material model, which facilitates the studies of creep and relaxation responses of the knee. Our recent studies include statistical shape modelling to account for population diversity
Modelling Meniscectomy of Knee Joint
The load sharing between cartilage and meniscus in the knee joint depends on not only the joint congruence but also the fluid pressurization in cartilage and meniscus. SOIL CONSOLIDATION procedure in ABAQUS was used to model the poromechanical behaviour
Modelling Pipe-soil Interaction
The pipe-soil interaction may produce a pipe stress beyond yielding strength. Soil consolidation may also produce a substantial increment in pipe stress. Interestingly, bones share similarities in composition and mechanics with rocks (Cowin, 1999, J Bomech), and cartilages consolidate like soils (Oloyede & Broom, 1991, Clin Biomech)
New paper: Impact of Knee Geometry on Joint Contact Mechanics after Meniscectomy
Scientific Reports 14, 28595. https://doi.org/10.1038/s41598-024-79662-y or social media share
As part of Nature Portfolio, Scientific Reports is the 5th most-cited journal in the world
New paper: Statistical Shape Modeling to Determine Poromechanics of the Human Knee Joint
Annals of Biomedical Engineering, https://doi.org/10.1007/s10439-024-03648-0 or social media share
The Journal of the Biomedical Engineering Society
Knee Geometry and Mechanics of Meniscectomized Knees
New paper: Region partitioning of articular cartilage with streaming-potential-based parameters and indentation maps
Journal of the Mechanical Behavior of Biomedical Materials (current journal impact factor: 3.90), https://doi.org/10.1016/j.jmbbm.2024.106534
Highlights
- Introduced a streaming potential-derived parameter in clustering to characterize region-dependent cartilage inhomogeneity;
- Partitioned regions of condyle cartilage with streaming potential, indention-relaxation and thickness maps from 24 porcine stifle joints;
- Proposed three triangular or trapezoidal regions, as the simplest approximation to model site-specific inhomogeneity across a femoral condyle;
- Confirmed region-dependent streaming potential variations over femoral condyles.
New lecture note: Generic modeling of contact and fluid pressures in human knee joint for a subpopulation
RuoQi Deng, LePing Li. Generic Modeling of Contact and Fluid Pressures in Human Knee Joint for a Subpopulation. In: Skalli, W., Laporte, S., Benoit, A. (eds) Computer Methods in Biomechanics and Biomedical Engineering II. CMBBE 2023. Lecture Notes in Computational Vision and Biomechanics, Vol 39., pp 121-128, 2024. Springer, Cham.
Book chapter: Three-dimensional Finite Element Modeling of Human Knee Joint
Chapter 16 in Cartilage Tissue and Knee Joint Biomechanics, Elsevier, 2023 September, ISBN: 9780323905978