Quental Carlos, Folgado João, Fernandes Paulo R, Monteiro Jacinto
a IDMEC, Instituto Superior Técnico, Technical University of Lisbon , Avenida Rovisco Pais, 1 1049-001 , Lisbon , Portugal.
Comput Methods Biomech Biomed Engin. 2014 Aug;17(10):1129-43. doi: 10.1080/10255842.2012.738198. Epub 2012 Dec 5.
Finite element analyses, with increasing levels of detail and complexity, are becoming effective tools to evaluate the performance of joint replacement prostheses and to predict the behaviour of bone. As a first step towards the study of the complications of shoulder arthroplasty, the aim of this work was the development and validation of a 3D finite element model of an intact scapula for the prediction of the bone remodelling process based on a previously published model that attempts to follow Wolff's law. The boundary conditions applied include full muscle and joint loads taken from a multibody system of the upper limb based on the same subject whose scapula was here analysed. To validate the bone remodelling simulations, qualitative and quantitative comparisons between the predicted and the specimen's bone density distribution were performed. The results showed that the bone remodelling model was able to successfully reproduce the actual bone density distribution of the analysed scapula.
随着细节和复杂性程度的不断提高，有限元分析正成为评估关节置换假体性能和预测骨骼行为的有效工具。作为研究肩关节置换术并发症的第一步，本研究基于之前试图遵循沃尔夫定律的已发表模型，旨在开发并验证一个完整肩胛骨的三维有限元模型，用于预测骨重塑过程。所应用的边界条件包括从基于同一受试者的上肢多体系统获取的全部肌肉和关节载荷，该受试者的肩胛骨在此进行分析。为了验证骨重塑模拟，对预测的和标本的骨密度分布进行了定性和定量比较。结果表明，骨重塑模型能够成功再现所分析肩胛骨的实际骨密度分布。
