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3D Printing and Computer-Aided Design for Precision Osteotomy-Aided Modules in Bone Biomechanical Study
Journal article   Open access

3D Printing and Computer-Aided Design for Precision Osteotomy-Aided Modules in Bone Biomechanical Study

Daofeng Wang, Lin Han, Gaoxiang Xu, Wupeng Zhang, Hua Li, Cheng Xu, Huanyu Li, Jitian Li, Hao Zhang and Jiantao Li
INTERNATIONAL JOURNAL OF BIOPRINTING, v 8(4), pp 108-116
01 Jan 2022
DOI: https://doi.org/10.18063/ijb.v8i4.607
Featured in Collection :   UN Sustainable Development Goals @ Drexel
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https://doi.org/10.18063/ijb.v8i4.607View
Published, Version of Record (VoR)CC BY V4.0,  Open

Abstract

Engineering Engineering, Biomedical Materials Science Materials Science, Biomaterials Science & Technology Technology
Precise and shape-matching osteotomy models are determinants of the experimental homogeneity in the assessment of orthopedic biomechanical properties. At present. however, publications on detailed description of osteotomy in bone biomechanical study are scanty. The purposes of this study were to designa new method of osteotomy-aided module production forbone biomechanical study with the help of three-dimensional (3D) printing and computer-aided design (CAD) and to test the accuracy of osteotomy. Fourteen fourth-generation composite femurs were analyzed. The composite bone was scanned using computed tomography (CT) scanner and loaded in Mimics for reconstruction and, then, imported into 3-Matic software to design intertrochanteric region. distal femur, and rotation control lever models. 3D printer was used to print each component. After assembling Sawbones and osteotomy modules, a horizontal band-saw was used to create fracture models. The volume and mass of intermediate fragments were calculated and analyzed. Satisfactory osteotomies of all composite Sawbones were achieved. The mean volume and mass of intermediate fragments were 21.0 +/- 1.5 mm(3) and 19.0 +/- 1.2 g, respectively. Range of deviation from average of volumes was -1.9 - 2.8 mm(3) and most of these deviations fall within the range of -1.4 - 2.1 mm(3). Range of deviation from average of mass was -2.0 -1.6 g and most of these deviations fall within the range of -1.4 - 1.6 g. One-dimensional histogram of deviation from average shows the precise and stable osteotomy performed based on the modules accordingly. A new method of osteotorm-aided module production for bone biomechanical study with the help of 3D printing and CAD was designed and the accuracy of osteotomy was verified. This method is expected to achieve homogeneity and standardization of osteotomy in bone biomechanical study.

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5 citations in Web of Science
4 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Engineering, Biomedical
Materials Science, Biomaterials
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