In 66 cases of low back pain with or without sciatica, peridurography using 60% Urographin had been made by upright position since July in 1970, in National Fukuoka Central Hospital.
An advancement of this method was to be able to prove more exactly the existence of the disk herniation owing to recognition of the fine picture in lumbar peridural space than by prone position.
The findings of these peridurographs were on the whole same as those of the operations.
In case of the so-called central herniation, because of the symptomless of the sciatica; the herniation is found out only by this peridurography.
We reported the results of six typical cases.
