Characterisation and modelling rheological properties of acrylic bone cement during application
Characterisation and modelling rheological properties of acrylic bone cement during application
复制标题
应用过程中丙烯酸骨水泥流变特性的表征和建模
DOI：
10.1016/j.mechrescom.2012.12.010
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发表时间：
2013
影响因子：
2.4
通讯作者：
A. Lion
中科院分区：
文献类型：
--
作者：
S. Kolmeder;A. Lion
丙烯酸骨水泥是椎骨增量中最常用的生物材料。这种材料的复杂机械行为意味着在临床干预期间必须小心处理，这经常伴随着潜在的并发症。为了有助于更详细地了解人体内的流动行为，本研究涉及丙烯酸骨水泥流变特性的实验表征和唯象建模。进行旋转和毛细管流变测量，以研究丙烯酸骨水泥的时间、温度和剪切速率依赖性流动行为。基于这些测量结果，提出了一个可以描述所有观察到的现象的数学模型。这些模型可以在计算流体动力学代码中实现，以探索骨水泥在更复杂的几何形状（如人体椎体）中的流动行为。
Acrylic bone cement is the most common biomaterial used in vertebral bone augmentation. The complex mechanical behaviour of this material implicates a careful handling during clinical interventions which are quite frequently accompanied with potential complications. To contribute to a more detailed understanding of the flow behaviour inside the human body, this study deals with the experimental characterisation and phenomenological modelling of the rheological properties of acrylic bone cements. Rotational and capillary rheometric measurements were carried out to investigate the time, temperature and shear rate dependent flow behaviour of acrylic bone cement. Based on these measurements a mathematical model is proposed that can describe all of the observed phenomena. Such models can be implemented in computational fluid dynamics codes to explore the flow behaviour of bone cement through more complex geometries like human vertebral bodies.