Related Experiment Video
Updated: Aug 15, 2026
Creating Rigidly Stabilized Fractures for Assessing Intramembranous Ossification, Distraction Osteogenesis, or Healing of Critical Sized Defects
Published on: April 11, 2012
Load transmission through a healing tibial fracture
V Vijayakumar1, L Marks, A Bremmer-Smith
1Oxford Orthopaedic Engineering Centre (OOEC), University of Oxford, UK. vinod@intsoph.org
Background:
Fracture healing has been linked to both the magnitude and distribution of mechanical stresses on the healing fracture tissues. However, direct clinical measurement of in vivo tibial axial loading is not possible.
Methods:
Using computed tomography images, force plate data and recorded 3D interfragmentary micromovements, accurate 3D finite element models of a healing human tibial fracture were generated at 7, 10, and 16 weeks post-fracture and used to calculate longitudinal tibial forces and external fixator load-sharing during bilateral stance and walking.
Findings:
Tibial load-sharing by the fixator decreased significantly as the fracture tissues developed even moderate stiffness, while tibial load increased steadily towards normal.
Interpretation:
Quantitative assessment of the contribution of the external fixator is important as overloading of the callus due to insufficient support has been implicated in the retardation of the healing process.
