Thoracic Impact Testing of Pediatric Cadaveric Subjects

Overview

Journal J Trauma

Specialty Emergency Medicine

Date 2006 Dec 13

PMID 17159696

Citations 7

Authors

Jun Ouyang

Weidong Zhao

Yongqing Xu

Weisheng Chen

Shizhen Zhong

Affiliations

Soon will be listed here.

Abstract

Background: This study aimed to describe the injury mechanism of children's thorax in frontal impact and provide an injury threshold.

Methods: Nine unembalmed cadavers were divided into two groups. A young cohort aged 2 to 4 years (four cadavers) was impacted by a 2.5-kg mass impactor, whereas the older cohort, aged 5-12 years (five cadavers), was impacted by a 3.5-kg mass impactor.

Results: The mean values of peak sternal viscous criterion and accelerations for the older group and younger group were 1.35 +/- 0.62 m/s, 81.5 +/- 29.2 g and 2.05 +/- 0.5 m/s, 65 +/- 20.1 g, respectively. The maximum forces in the older group (1138 +/- 271.7 N) were significantly higher than those in younger group (776.3 +/- 39 N). In seven specimens, injuries after the impact were found.

Conclusions: The full set of cadaveric injuries did not correlate with peak chest deformation, sternal viscous criterion, or peak fourth thoracic vertebra acceleration. However, cadaver thoracic injury showed a strong dependence on dissipated energy to peak deformation.

Citing Articles

[Research on thorax impact injury of children at different ages based on finite element models].

Cui S, Han X, Li H, Lu W, He L, Ruan S Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2018; 35(5):713-719.

PMID: 30370709 PMC: 9935264. DOI: 10.7507/1001-5515.201712041.

[Effect of muscle biofidelity on thoracic impact biomechanical response of a six-year-old child using finite element method].

Cui S, Shan L, Li H, Lu W, He L, Ruan S Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2018; 34(1):41-7.

PMID: 29717585 PMC: 9935370.

Evaluation of 6 and 10 Year-Old Child Human Body Models in Emergency Events.

Gras L, Stockman I, Brolin K PLoS One. 2017; 12(1):e0170377.

PMID: 28099505 PMC: 5242506. DOI: 10.1371/journal.pone.0170377.

Effects of the Variation in Brain Tissue Mechanical Properties on the Intracranial Response of a 6-Year-Old Child.

Cui S, Li H, Li X, Ruan J Comput Math Methods Med. 2015; 2015:529729.

PMID: 26495031 PMC: 4606192. DOI: 10.1155/2015/529729.

Expansion and evaluation of data characterizing the structural behavior of the pediatric abdomen.

Lamp J, Salzar R, Kerrigan J, Parent D, Lopez-Valdez F, Lau S Ann Adv Automot Med. 2010; 54:89-96.

PMID: 21050594 PMC: 3242538.