[Is there good correlation between findings in lumbar myelography and surgery? (author's transl)].

Report on 1177 lumbar myelograms performed in 1977 - with comparison of the surgical findings (in 854 patients operated on for herniated disc) with those of myelography. The results are: 86% correct and 9.5% incorrect preoperative myelographic diagnosis; in 4.5% an evaluation was not possible because of scars from previous surgery. Additionally, our technique of lumbar myelography is being described.