Effects of Cortical Bone Modeling Methods on Biomechanical Responses of Chinese 95th Percentile Pelvis Finite Element Model
10.16156/j.1004-7220.2025.01.025
- VernacularTitle:密质骨建模方式对国人第95百分位骨盆生物力学响应的影响
- Author:
Shihai CUI
1
;
Weizuo CHEN
1
;
Haiyan LI
1
;
Lijuan HE
1
;
Wenle LÜ
1
Author Information
1. 天津科技大学机械工程学院,天津 300457;现代汽车安全技术国际联合研究中心,天津 300457
- Publication Type:Journal Article
- Keywords:
Chinese 95th percentile pelvis finite element model;
high biofidelity;
simulation experiment;
cortical bone thickness;
biomechanical response
- From:
Journal of Medical Biomechanics
2025;40(1):187-193
- CountryChina
- Language:Chinese
-
Abstract:
Objective The finite element pelvis model with detailed anatomical structures which meets the Chinese human 95th percentile characteristics is developed,and the influence of cortical bone modeling method on the biomechanical response of the real pelvis is explored.Methods Based on the pelvic medical images of a 95th percentile male volunteer,two finite element pelvis models with real hip bone cortical bone thickness(REA-M)and 2 mm uniform cortical bone thickness(CON-M)dominated by hexahedral elements were constructed.Using the simulation method to reconstruct the loading conditions of cadaver experiments,the validation of models was verified by comparing the cadaver experimental results and simulation results,and biomechanical response differences of two models under different working conditions were discussed.Results The simulation data showed that there was a strong correlation between the overall biomechanical responses of two pelvic models and the cadaver experiment,and the mechanical response difference between two models was mostly within 8％,and the correlation score difference between two models was smaller than 2％.Conclusions The validation of two pelvic models established in this study is verified by rebuilding multiple simulation experiments.Although the biomechanical responses of CON-M and REA-M models were different,the difference was small.From the perspective of model simplification,the CON-M model can be used to study the biomechanical response of the pelvis.
