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Tests and diagnosis
By Mayo Clinic staffSpinal stenosis can be difficult to diagnose because its signs and symptoms resemble those of many age-related conditions. Tests may be needed to help pinpoint the true cause of your signs and symptoms.
Spinal X-rays
Although an X-ray isn't likely to confirm that you have spinal stenosis, it can help rule out problems that cause similar symptoms, including a fracture, bone tumor or inherited defect.
Magnetic resonance imaging (MRI)
In most cases, this is the imaging test of choice for diagnosing spinal stenosis. Instead of X-rays, an MRI uses a powerful magnet and radio waves to produce cross-sectional images of your spine. The test can detect damage to your disks and ligaments, as well as the presence of tumors. Most important, it can show pressure on the spinal cord or spinal nerves.
CT myelogram
Computerized tomography (CT) combines X-ray images taken from many different angles to produce detailed, cross-sectional images of your body — including the shape and size of your spinal canal. In a CT myelogram, the CT scan is conducted after a contrast dye is injected into the spinal column. This outlines the spinal cord and nerves, and can reveal herniated disks, bone spurs and tumors.
- Questions and answers about spinal stenosis. National Institute of Arthritis and Musculoskeletal and Skin Diseases. http://www.niams.nih.gov/Health_Info/Spinal_Stenosis/default.asp. Accessed Dec. 21, 2009.
- Curlee PM. Spinal stenosis. In: Canale ST, et al. Campbell's Operative Orthopaedics. 11th ed. Philadelphia, Pa.: Mosby Elsevier; 2007. http://www.mdconsult.com/das/book/body/176085454-4/931784364/1584/313.html#4-u1.0-B978-0-323-03329-9..50044-1--cesec14_2092. Accessed Dec. 21, 2009.
- Meleger AL. Cervical stenosis. In: Frontera WR, et al. Essentials of Physical Medicine and Rehabilitation. 2nd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/177277239-7/935792099/1678/9.html#4-u1.0-B978-1-4160-4007-1..50008-0--cesec8_89. Accessed Jan. 5, 2010.
- Bartleson JD (expert opinion). Mayo Clinic, Rochester, Minn. Jan. 31, 2010.
- Isaac Z, et al. Lumbar spinal stenosis. In: Frontera WR, et al. Essentials of Physical Medicine and Rehabilitation. 2nd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/177277239-4/935690969/1678/49.html#4-u1.0-B978-1-4160-4007-1..50048-1_751. Accessed Jan. 5, 2010.
- Spinal stenosis. American College of Rheumatology. http://www.rheumatology.org/public/factsheets/diseases_and_conditions/stenosis.asp. Accessed Dec. 22, 2009.
- Cauda equina syndrome. American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=A00362. Accessed Jan. 5, 2010.
- Levin K. Lumbar spinal stenosis: Treatment and prognosis. http://www.uptodate.com/home/index.html. Accessed March 3, 2010.
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