抄録
During from 1974 to 1976, 1735 newborn babies were examined at 5th days after birth for hip joint laxity. Among of them, 11 babies were found positive click sign (0.46%) and treated immediately with modified Pavlikharness or diaper.
Three months after, 5 babies were found congenital dislocation of the hip among the 1019 babies, who were having no pathological findings at initial examination.
