[Computer tomography in malformations, inflammatory and degenerative changes in the spine].

Technical improvements and the use of intrathecal Metrizamide have made computer tomography of the spine a valuable diagnostic method. The value of CT in demonstrating morphological changes in the spine was investigated in 77 examinations of congenital malformation or inflammatory and degenerative disease. Measurements of the spinal canal provide more accurate information than conventional radiology and these are discussed. Intradural injection of contrast medium makes it possible to diagnose abnormalities of the cord by means of CT. Inflammatory changes in the spine and in the paraspinal soft tissues are shown at an early stage. A diagnosis of tumour can be confirmed by CT-controlled needle biopsy. It is usually possible to demonstrate disc prolapse without the use of contrast medium. On the other hand, the investigation of pain following disc operations remains a difficult problem.