[Modification of echographically detectable epiphyseal centers by the sex, weight and length of the fetus].

An investigation on the influence of foetal factors on the size and the appearance of epiphysis centres in the foetal knee is performed in 222 cases with well-defined duration of amenorrhoea. While the weight and the length of the infants show a significant influence at least on the size of the femoral centres, sex does not have any influence on the diameter. The time of the echographic appearance of epiphysis centres does not depend on any of the investigated foetal parameters.