Abstract
Three-dimensional (3D) model reconstruction of fractured long bones is of great importance in the research of orthopedic surgery. A method is proposed to rapidly construct restored surface models of individual damaged femurs and tibias in this paper. Based on a cloud point set of individual fracture model, the developed methodology is processed as follows. First, typical feature points are defined and extracted in a pre-generated average model of intact bone according to prior medical knowledge. Next, an intact reference surface model is created based on a parameterization template with a few valid parameters measured from the damaged bone. Then, feature points of the fractured bone and corresponding ones of the reference are extracted, and the former is aligned to the latter by rigid registration. Finally, the major surface segments of fractured bone are atomically adjusted to each part of the reference with the obtained feature registration matrixes. Experimental results on femur and tibia show that the proposed method can reconstruct intact surface models of fractured bones efficiently and accurately with feature information extracted from individual long bones.
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Acknowledgements
This work was supported by the Key Research & Development Plan of Jiangsu Province of China (Grant No. BE2017067), the Natural Science Foundation of Jiangsu Province of China (Grant No. SBK2020021355), the Qing Lan Project of Jiangsu Province (Grant No. 2019czie), and the Natural Science Foundation of Changzhou Vocational Institute of Engineering (Grant No. 11130300118001).
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Communicated by Florence Hubert.
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Chen, X. Reconstruction individual three-dimensional model of fractured long bone based on feature points. Comp. Appl. Math. 39, 131 (2020). https://doi.org/10.1007/s40314-020-01165-z
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DOI: https://doi.org/10.1007/s40314-020-01165-z