有限元数字化膝关节模型构建的研究与应用

背景：膝关节的解剖结构和力学特征决定它的生物力学特性，应用有限元分析方法对膝关节生物力学机制及损伤机制进行研究，可以有效地指导预防和治疗膝关节疾患。 目的：评价有限元数字化膝关节模型构建的研究和应用价值。 方法：以“CT，MRI，膝关节，有限元，模型构建”为关键词，采用计算机检索2005年1月至2011年11月维普数据库和万方数据库相关文章。纳入与膝关节模型构建及应用相关的文章；排除重复研究或Meta分析类文章。以9篇文献为重点讨论CT、MRI和有限元模型构建在膝关节中的研究和应用。 结果与结论：CT、MRI所采集到的DICM图像在有限元模型构建中各具优缺点，有限元模型合理应用，能够为膝关节的手术提供更全面、更可靠的影像学资料，临床医师可根据模型进行手术方案设计，模拟手术流程，显著降低了手术风险，减少了患者的痛苦。

Research and application of finite element digital model of the knee joint

BACKGROUND:The biomechanical properties of the knee joint are determined by the anatomical structure and mechanical characteristics, the finite element analysis of knee biomechanics mechanism and the injury mechanism can effectively guide, prevent and treat the knee disorders. OBJECTIVE:To evaluate the research on the establishment of finite element digital model of the knee joint and its application value. METHODS:A computer-base search was performed on the VIP database and Wanfang database from January 2005 to November 2011 for the articles related to the establishment and application of knee joint model with the key words of “CT, MRI, knee joint, finite element, model establishment”. Repetitive articles or Meta-analysis were eliminated. We focused on nine articles to investigate the application of CT, MRI and finite element model in the research of the knee joint. RESULTS AND CONCLUSION:DICM images collected by CT and MRI have advantages and disadvantages in the establishment of finite element model, reasonable application of the finite element model can provide more comprehensive and reliable imaging data for the knee surgery. Clinicians can design the surgical program and simulate the surgical progress according to the model which can reduce the risk of surgery significantly and reduce the suffering of the patient.