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The Role of Myelography and Discography in Low Back Pain.

NIOSH 1978 Jun:37-40
The role of myelography and discography in evaluating low back pain was discussed. Myelography was considered. The purpose of a myelogram was to indicate the presence of a space occupying lesion in the spinal cord which may affect the dural sac. It was noted that a myelogram should be not done just to confirm or refute a diagnosis of a ruptured lumbar disc. It should be considered only after conservative measures have failed and surgery is being considered. The limitations of myelography were discussed. A properly performed myelogram had an accuracy of 90 to 95 percent; however, even with well performed myelograms, false positives and false negatives could occur. The technique for properly performing a myelogram was discussed. Discography was considered. The purposes, efficacy, and diagnostic potential of a discogram were discussed. Discography could define a normal nucleus pulposus and, by visualizing deviations from the normal, indicate degeneration. It was noted that even though both discography and myelography can reveal lumbar disc degeneration, the techniques may not determine which disc is responsible for the patient's symptoms. Discography was considered to be the most valuable when it shows a normal nuclear outline, thereby avoiding an unnecessary exploratory laminotomy.
NIOSH-Contract; Contract-210-77-0088; Back-injuries; Clinical-diagnosis; Musculoskeletal-system; Clinical-techniques; Visual-aids; Musculoskeletal-system-disorders; Spinal-cord; Medical-examinations;
Publication Date
Document Type
Conference/Symposia Proceedings;
Funding Type
Fiscal Year
NTIS Accession No.
NTIS Price
Identifying No.
(NIOSH) 78-169
Priority Area
Low Back Disorders; Disease and Injury; Musculoskeletal-system; Musculoskeletal-system-disorders;
Source Name
Occupational Safety and Health Symposia, 1977; NIOSH, U.S. Department of Health, Education, and Welfare, Cincinnati, Ohio, DHEW (NIOSH) Publication No. 78-169