Investigation of pelvic deformation and related factors of children

Abstract

The purpose of this study was to clarify the relationship between gender differences in pelvic deformation and physical factors in children. The subjects were 19 boys aged 11 years or younger and 16 girls aged 9 years or younger, allegedly not having puberty. The external pelvimetry values, age and physique were investigated. The degree of pelvic opening and torsion was calculated from the external pelvimetry values. The results showed no gender differences, except that the value corresponding to the distance between ASIS divided by height was significantly higher in girls. The degree of pelvic opening was dependent on the distance of lateral diameter of sacrum. There was no gender difference in the degree of pelvic torsion that causes abnormal delivery and sacroiliac joint pain. In addition, it was found that there was a certain amount of torsion from childhood.