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[Bone remodeling numerical simulation on the basis of bone adaptive theory]
Bingzhi Chen1, Wenzhang Zhao, Yanbin Sun
1School of Aerospace and MOE Key Laboratory for Strength and Vibration, Xi'an Jiaotong University, Xi'an 710049, China. Bingzhi@djtu.edu.cn
Summary
This study introduces a strain energy criterion to simulate bone remodeling, accurately predicting material distribution in femurs and explaining fracture healing mechanisms.
Area of Science:
- Biomechanics
- Computational modeling
- Bone physiology
Context:
- Bone remodeling is a complex biological process influenced by mechanical stimuli.
- Accurate simulation of bone remodeling is crucial for understanding bone diseases and developing treatments.
- Current methods may not fully capture the intricate relationship between mechanical forces and bone adaptation.
Purpose:
- To develop and validate a computational model for simulating bone remodeling.
- To utilize a strain energy criterion as the primary mechanical stimulus for predicting bone changes.
- To apply the model to realistic anatomical structures and fracture healing scenarios.
Summary:
- A novel approach combines the finite element (FE) method with optimization theory and a strain energy criterion to simulate bone remodeling.
- Bone remodeling is modeled as dynamic changes in material distribution, driven by strain energy density.
- Simulations of 2D and 3D proximal femur models, along with bone fracture healing, demonstrate the criterion's efficacy.
Impact:
- The validated criterion accurately predicts apparent bone density distribution in the proximal femur.
- This model provides insights into the underlying mechanisms of bone fracture healing.
- Potential applications include improved design of orthopedic implants and personalized treatment strategies for bone conditions.
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