Biomechanical Modelling of the Human Leg under Elastic Compression

We will present a quick and efficient approach to perform patient-specific Finite-Element (FE) predictions of the human calf response under elastic compression. After a detailed description of the implementation of this model, results obtained on a cohort of volunteers will be presented. The deformed geometry predicted by the FE model is in very good agreement with the MRI scan of the same leg under elastic compression.

Eventually, it is shown that elastic compression always induces a partial vein closure but the magnitude of vein closure depends strongly on the position of the vein, on the shape of the leg and on the material properties of surrounding soft tissues.

We also show that the effect of elastic compression is marginal on the deep veins where vein closure is controlled by muscle contractions. The impact of elastic compression on vein hemodynamics and microcirculation will finally be considered.