Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (13): 2309-2312.doi: 10.3969/j.issn.1673-8225.2011.13.008

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Computer-aided personalized anatomic plate of the distal femur

Ren Long-tao1, Zhang Yun-peng2, Guo Zhi-jian1, Bu Xiang-kun3, Lin Shu-zhong1   

  1. 1Taiyuan Central Hospital, Taiyuan  030009, Shanxi Province, China
    2Heping Hospital of Changzhi Medical College, Changzhi  046000, Shanxi Province, China
    3Lübo Medical Equipment Co., Ltd., Taiyuan  030006, Shanxi Province, China
  • Received:2010-11-19 Revised:2011-02-20 Online:2011-03-26 Published:2011-03-26
  • About author:Ren Long-tao, Chief physician, Master’s supervisor, Taiyuan Central Hospital, Taiyuan 030009, Shanxi Province, China Renlongtaoguke@163.com

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Abstract:

BACKGROUND: The existing anatomic plates are lack of personalization.
OBJECTIVE: To establish a three-dimensional solid model of distal femoral fracture based on CT scanning data and to design a solid model of personalized anatomic plate.
METHODS: One case of male patient with distal femoral fracture was used in the experiment, and the raw data of selected regions was obtained through the thin slices CT scan. The data was saved in Dicom format and exported into the Mimics software, and then a solid model of distal femoral fractures was obtained. The model was saved in IGES format, and imported into Geomagic software, transformed IGES point cloud data into polygon model and mesh model of the structure, finally the closed NURBS surface model was obtained. The femur surface model was filed into UG software in IGES format, selected the best surface fitting with the plate according to surgical experience and demand on the femur surface plate.
RESULTS AND CONCLUSION: ①A three-dimensional solid model of complex distal femoral fracture was established. ②A three-dimensional solid model of personalized anatomic plate which has a good facial fit and a special design of screw holes was established. ③The distal femoral personalized anatomic plate model and distal femur model were machined. The profile of model was realistic and closed to the normal, which has best surface fitting and special design of screw holes.

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