Establishment of 6-Year-Old Children Femoral Finite Element Model and Simulation Analysis of Femoral Neck Injury

A 6-year-old children’s femur finite element model was developed based on the CT image data and children anatomical features.The three dimentional geometric model was reconstructed based on the CT scanning data first,and then a finite element mesh was developed.The finite element model was used to simulate the falling of a child during an accident.Analysis of the results of the simulated experiment showed that the instantaneous large contact force between the femoral neck and ground occurred during the falling after the child was hit in a car accident.The peak stress was found on the ectocondyle of femoral neck which could lead to a fracture.The reseach results agreeded with the past experiments and could provide some insights into 6-year-old children’s femoral injury biomechanics.