Computational fluid dynamic analysis of the effect of morphologic features on distraction forces in fenestrated stent grafts

Distraction force acts against endovascular fixation to provoke stent graft migration. These blood flow simulations describe the relationship between morphologic features of the aortoiliac vessels and distraction force. A greater understanding of this relationship may help avoid endovascular solutions that carry a high risk of migration. In some cases, this may mean an alternative choice of seal zone or even device. In others, it could lend support to an open surgical approach or to a more intensive follow-up regimen.