Distance and velocity of reference values for fetal growth are needed. Such fetal growth curves need to be continued postnatally. Ultra- sonography will provide curves of fetal head diameters and circumferences that fit such criteria. As a linear measurement of fetal growth, reference values for femur length are available from 14 weeks “post-menstruation” to term.This study showed there was a highly significant correlation between radiographically measured femoral length and recumbent length of the newborn infant. Thus, in examining the potential different outcomes in growth for the fetus-now-newly bom, femoral length prenatal serial measurements may be continued postnatally by measurement of another linear postnatal measure of growth—recumbent length.
Falkner, Frank and Roche, A F.
"Relationship of Femoral Length to Recumbent Length and Stature in Fetal, Neonatal, and Early Childhood Growth,"
5, Article 5.
Available at: https://digitalcommons.wayne.edu/humbiol/vol59/iss5/5