Eighty patients who had symptoms and signs of cervical spondylosis and /or disk were studied with myelography(using Omnipaque) followed by postmyelographic computed tomography to evaluate the relative efficacy of these two methods in the determination of cervical herniation and spondylosis. Thirynine levels in 26 adds useful information to the myelographic findings. Cord and root compression are better evaluated and osteophytes can be differentiated from disk herniation. In osteophytes myelography was as diagnostic as postmyelographic CTBut disk herniation was dientified in 70% (14/20 level) with postmyelographic CT and only in 15%( 3/20 levels) with myelography.