在连续骨重建中同时考虑皮质骨和松质骨
Concurrent consideration of cortical and cancellous bone within continuum bone remodelling
摘要：
连续体骨重建是预测机械刺激对骨密度演变影响的重要工具。虽然在许多基于连续体骨重塑的研究中仅考虑松质骨的建模，但这项工作提出了一种建模皮质骨和两种骨类型相互作用的方法。通过引入初始体积分数来区分骨类型。一个简单的逐点示例用于研究新模型选项的行为，以及股骨近端示例，其中使用初始密度分布证明了两种骨类型的相互作用。所提出的模型选项的结果表明，皮质骨的考虑显着改变松质骨的密度演变，因此不应被忽视。
英文摘要：
Continuum bone remodelling is an important tool for predicting the effects of mechanical stimuli on bone density evolution. While the modelling of only cancellous bone is considered in many studies based on continuum bone remodelling, this work presents an approach of modelling also cortical bone and the interaction of both bone types. The distinction between bone types is made by introducing an initial volume fraction. A simple point-wise example is used to study the behaviour of novel model options, as well as a proximal femur example, where the interaction of both bone types is demonstrated using initial density distributions. The results of the proposed model options indicate that the consideration of cortical bone remarkably changes the density evolution of cancellous bone, and should therefore not be neglected.
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