Related Experiment Video
Updated: Oct 2, 2025

Surgical Bone Implantation Technique for Rat Tibia Models of Diabetes and Osteoporosis
Published on: July 5, 2024
Prediction of Cortical Bone Thickness Variations in the Tibial Diaphysis of Running Rats
Daniel George1, Stéphane Pallu2,3, Céline Bourzac2,4
1ICUBE Laboratory, CNRS, University of Strasbourg, 2 Rue Boussingault, 67000 Strasbourg, France.
Abstract:
A cell-mechanobiological model is used for the prediction of bone density variation in rat tibiae under medium and high mechanical loads. The proposed theoretical-numerical model has only four parameters that need to be identified experimentally. It was used on three groups of male Wistar rats under sedentary, moderate intermittent and continuous running scenarios over an eight week period. The theoretical numerical model was able to predict an increase in bone density under intermittent running (medium intensity mechanical load) and a decrease of bone density under continuous running (higher intensity mechanical load). The numerical predictions were well correlated with the experimental observations of cortical bone thickness variations, and the experimental results of cell activity enabled us to validate the numerical results predictions. The proposed model shows a good capacity to predict bone density variation through medium and high mechanical loads. The mechanobiological balance between osteoblast and osteoclast activity seems to be validated and a foreseen prediction of bone density is made available.
More Related Videos
02:56Author Spotlight: The Box-Cavity Cortical Approach for Enhanced Evaluation of Biomaterials and Bone Regeneration
Published on: November 21, 2023
07:12Semiautomated Longitudinal Microcomputed Tomography-based Quantitative Structural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model
Published on: September 28, 2017