Computed tomography after lumbar myelography in lower back and extremity pain syndromes.

A series of 214 patients with lower back and extremity pain syndromes underwent computed tomography (CT) after lumbar myelography. CT was in full agreement with the myelographic finding in 81%. In 12% CT gave more information but did not change the therapy. In 7% CT changed the diagnoses and was of significant benefit. Myelography was considered an appropriate primary method for evaluating lower back and extremity pain syndromes if the level of suspected lesion could not be predicted. CT is suitable not only as a method for checking unclear or confusing myelographic findings but also as a primary mode in selected cases.