Citation

Schmitt KU, Snedeker JG. Proc. IRCOBI 2005; 33: 14p.

Copyright

(Copyright © 2005, International Research Council on Biomechanics of Injury)

DOI

unavailable

PMID

unavailable

Abstract

This study addresses the biomechanical response of kidneys to traumatic insult by pendulum impact. Force-deformation characteristics were derived for 65 impacted adult pig kidneys. Renal injuries were classified by autopsy, and an injury risk analysis was performed. An energy based injury threshold was identified, with a strain energy density of 21 kJ/m3 corresponding to a 50% risk of renal injury level AIS3 or higher. Finally, the impact tests were simulated using a finite element model of the human kidney to investigate underlying injury mechanisms. The model predicted the renal capsule and underlying parenchyma to first fail at an impact energy level of 4.0J, consistent with experimental results.