Open Access

ARTICLE

Quick Construction of Femoral Model Using Surface Feature Parameterization

by Xiaozhong Chen∗ , †^†, Kunjin He∗, Zhengming Chen∗, ‡, Wei Xiang§

* College of IOT Engineering, Hohai University, Changzhou, PR China.
† Department of Intelligent Equipment and Information Engineering, Changzhou Vocational Institute of Engineering, Changzhou, PR China.
‡ Corresponding author. College of IOT Engineering, Hohai University, No.200, North Jinling Road, Changzhou, Jiangsu, China. E-mail: zmchen65@hotmail.com
§ Department of Orthopedics, The First People’s Hospital of Changzhou, Changzhou, PR China.

Molecular & Cellular Biomechanics 2015, 12(2), 123-146. https://doi.org/10.3970/mcb.2015.012.123

Abstract

To facilitate the modifying of femoral surface model, by dividing the femoral mesh into surface feature units bearing medical significance based on surface feature technology, a new approach of constructing femoral models using surface feature technology is proposed. Firstly, considering of femoral anatomy, the femoral triangle mesh model generated from the averaged point-clouds is divided into several specific regions, which are called feature regions; Secondly, feature parameters are defined and the constraints among them are set up, and feature surfaces are created by skinning the contours; Finally, the adjacent feature surfaces are connected by transition surfaces, and the parametric CAD surface model of femur is constructed. Experimental results show that, with the proposed method, the surface feature model can be intuitively constructed and edited with high-level parameters. Therefore, the proposed method provides a basic tool for the design of implants and the digital restoration of incomplete femurs.

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Keywords

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