[The best neuroradiological test in the preoperative investigation of lumbar sciatica. The neurosurgeon's point of view].

A short review of the theoretical and practical performance of myelography and computed tomography in the investigation of sciatica is presented. It is concluded that at the present time, myelography remains the primary procedure except in cases of typical, acute sciatica with involvement of a single root where computed tomography can be preferred under certain conditions.