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Biomedical Engineering and Clinical Medicine. 2011, (04)

Numerical simulation in Nuss surgical correction of pectus excavatumChinese Full Text

LIANG Lin1,YE Jin-duo1,WANG Zhi-qin1,LIU Ji-fu2,ZHANG Chun-qiu1,3(1.School of Mechanical Engineering,Tianjin University of Technology,Tianjin 300384,China;2.The Military General Hospital of Beijing PLA,Beijing 100700,China;3.Department of Biomedical Engineering,BeiHang University,Beijing 100191,China)

Abstract: Objective To establish three-dimensional solid model of thorax with pectus excavatum patient for biomechanical finite element analysis,for the purpose of providing a reference for Nuss surgical and making more viable options.Methods The three-dimensional modeling function of software Geomagic Studio and Mimics were used to establish the three-dimensional model of thorax with pectus excavatum patient,which included collection of thorax data,generation of point cloud data and establishment of three-dimensional thorax model.Then,the finite element model with 198 964 elements and 332 216 nodes was established.The Nuss procedure was simulated by finite element method with ANSYS.Results The integrated three-dimensional finite element model was reconstructed,and the model reproduced complicated morphology of thorax with pectus excavatum patient which included ribs and sternums.Conclusion It is demonstrated that the establishment of three-dimensional model of thorax with pectus excavatum patient and simulation of Nuss procedure by finite element method could be helpful for improving the quality of surgical correction in Nuss procedure.
Keywords：

pectus excavatum; three-dimensional solid model; finite element analysis; biomechanical analysis;

  • DOI：

    10.13339/j.cnki.sglc.2011.04.013

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  • Classification Code：

    R655

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