Department of Applied Physics, University of Eastern Finland, Kuopio, Finland.
Department of Biomedical Engineering, Lund University, Lund, Sweden.
Comput Methods Biomech Biomed Engin. 2023 Oct-Dec;26(16):2008-2021. doi: 10.1080/10255842.2022.2163587. Epub 2023 Jan 16.
Mechanical behavior of meniscus can be modeled using constitutive material models of varying complexity, such as isotropic elastic or fibril reinforced poroelastic (FRPE). However, the FRPE material is complex to implement, computationally demanding in 3D geometries, and simulation is time-consuming. Hence, we aimed to quantify the most suitable and efficient constitutive model of meniscus for simulation of cartilage responses in the knee joint during walking. We showed that simpler constitutive material models can reproduce similar cartilage responses to a knee model with the FRPE meniscus, but only knee models that consider orthotropic elastic meniscus can also reproduce meniscus responses adequately.
可以使用不同复杂程度的本构材料模型（如各向同性弹性或纤维增强多孔弹性（FRPE））来模拟半月板的力学行为。然而，FRPE 材料的实现比较复杂，在 3D 几何中计算需求高，并且模拟时间长。因此，我们旨在确定最适合和有效的半月板本构模型，以模拟膝关节在行走过程中的软骨响应。我们表明，更简单的本构材料模型可以再现类似于 FRPE 半月板的膝关节模型的相似软骨响应，但只有考虑各向异性弹性半月板的膝关节模型才能充分再现半月板的响应。
