Does placenta position modify the risk of placental abruption in car crashes?

Jérôme Delotte, Michel Behr, Lionel Thollon, André Bongain and Christian Brunet

Computer Methods in Biomechanics and Biomedical Engineering, 2009, vol. 12, issue 4, 399-405

Abstract: The goal of this paper is to study the influence of placenta position on the risk of placenta abruption following a car crash involving a full term pregnant woman in the driver's seat. We developed an anatomically precise finite element numerical model of a pregnant woman. This numerical model was validated using experimental data from crash tests using cadavers given to science. For a frontal impact at a speed of 20 km/h, the mean value of peak strain levels at the utero-placenta interface were found to be close to 20%, independent of placenta position, representing an adverse foetal outcome risk of approximately 15%. This study found no significant effect of placenta position on the risk of placenta abruption. Our anatomically precise approach does however confirm the interest of using a numerical model when studying injury mechanisms in pregnant women involved in car crashes.

Date: 2009
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DOI: 10.1080/10255840802649707

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