[The value of compute tomography in "sciatica" (author's transl)].

13 cases of therapy-resistant lumboischialgia without herniated disk, caused in 12 cases by a tumour and in 1 case by an abscess, were examined by computed tomography of the lumbar and pelvic region. This method is indicated immediately after insufficient results of conventional X-ray methods (including tomography) and of lumbosacral radiculography. The compute tomography is indispensable also in patients with "sciatica" with a known malignoma. The informations given by computed tomography are essential for the therapy planning.