Digital-image analysis of the femoral shaft/neck angle in human foetuses

Abstract

Measurements were made of the femoral shaft/neck angle (CCD angle) in 106 human foetuses, aged from 16 to 38 hbd, using a "FEM-GEO_03" computer program. The values of the CCD angle in the group under examination were: mean = 140.48°, SD = 6.95°, max = 157.90°, min = 113.93°. No significant differences were found in CCD angle size between male and female foetuses or between left and right bones. Dispersion analysis showed a decrease in the CCD angle during foetal development, which suggests that adaptation to a vertical position and bipedal gait starts during pregnancy and is manifest as an inborn feature

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