Manikin and cadaver neck response to dynamic tensile loading

Yliniemi, E. M.; Johnson, E. M.; Perry, C. E.; Pellettiere, J. A.; Van Nausdle, J. A.; Nuckley, D. J.; Ching, R. P.

Abstract

Serious cervical spine injuries may occur due to tensile forces from windblast during pilot ejection; however, human tensile neck injury tolerance data are not readily available. This study made a preliminary assessment of the human tensile neck injury tolerance and showed some differences between manikin and human cadaver responses to dynamic tensile neck forces. A manikin (ADAM) and three adult human cadaver specimens were subjected to dynamic tensile loading of the cervical spine at 500 mm/s. Out of three specimens tested, only one had catastrophic neck failure, identified as a bilateral facet dislocation at C5-6 with a peak load of 3900 N. The other two specimens experienced loads of 3500 N and 3900 N without catastrophic failure. The ADAM neck was 4-7 times stiffer than the cadaver necks in tension.

Links

URL: http://www-nrd.nhtsa.dot.gov/pdf/bio/proceedings/2002_30/30-1.pdf

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Cited By (1)

Year	Entry
2005	Nuckley DJ, Hertsted SM, Eck MP, Ching RP. Effect of displacement rate on the tensile mechanics of pediatric cervical functional spinal units. J Biomech. November 2005;38(11):2266-2275.