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

Area of Science:

• Biomechanics
• Computational modeling
• Pediatric injury research

Context:

• Pediatric trauma remains a significant concern, with limited understanding of specific injury mechanisms in young children.
• Finite element (FE) models offer a powerful tool for simulating and analyzing pediatric cadaver impact responses.
• Understanding age-specific responses is crucial for developing effective safety measures and improving pediatric injury outcomes.

Purpose:

• To investigate the impact of varying parameters (hammer size, material properties, anatomical characteristics) on pediatric thorax responses using validated FE models.
• To compare the mechanical responses and injury patterns between 3-year-old and 6-year-old pediatric FE models under impact loading.
• To assess the sensitivity of pediatric thorax models to different impact parameters and anatomical variations.

Summary:

• Finite element simulation experiments reconstructed pediatric cadaver impact data for 3- and 6-year-old models.
• Results indicate 3-year-olds exhibit greater sensitivity to hammer size variations compared to 6-year-olds.
• Thorax anatomical structure and internal organ deformation significantly influenced injury outcomes, highlighting age-specific differences.

Impact:

• Findings underscore the importance of age-specific biofidelic finite element models for accurate pediatric injury prediction.
• This research provides critical data for the development of improved child safety systems and injury prevention strategies.
• The study contributes to a deeper understanding of pediatric blunt force trauma mechanisms, informing future research and clinical practice.