Diskography
Diskography(Diskogram; Discography; Discogram)
by
Krisha McCoy, MS DefinitionDiskography is an imaging test. It involves injecting a contrast material into a disk in the spine and taking an x-ray. An x-ray is a test that uses radiation to take a picture of structures inside the body. The contrast material helps the disk appear more clearly on the x-ray.
Reasons for TestThis test is used to detect if a herniated disk or otherwise abnormal disc is a source of pain. This occurs when a disk in the spine bulges from its proper place. Disks are small, circular cushions between the vertebrae (bones) in the spine. Herniated disks can press on the nerves and cause severe pain. In some cases, they can cause pain themselves, but often an abnormal disc is not painful. Possible Complications TOPComplications are rare, but no procedure is completely free of risk. If you are planning to have diskography, your doctor will review a list of possible complications, which may include:
What to Expect TOPPrior to TestYour doctor may do the following:
Your doctor may instruct you to:
Description of the TestYou will lie on your stomach or side on a table. A technician will help place you into position. You may be given antibiotics through an IV. You may receive an injection of local anesthetic into the skin on your back. This will be done to reduce pain from the needles. Your doctor will use an imaging test called fluoroscopy. It combines x-ray technology with a TV screen to help guide needles into the disks. A contrast dye will be injected into the center of each disk. If the disk is normal, the liquid will remain in the center of the disk. If it is abnormal, the x-ray will detect any leaks. During the exam, you will be asked to rate any pain that is associated with the injections. This can help your doctor find out if it is the abnormal disk that is causing pain. After this test, your doctor may do a CT scan to see the spread of the contrast dye. After TestThe staff will observe you for 30 minutes or more. If you took a sedative, do not drive, operate machinery, or make important decisions until the sedative wears off. How Long Will It Take?About 30-60 minutes (an additional 30-60 minutes if a CT scan is also done) Will It Hurt?You may have pain from the contrast dye. Pain can last for several hours. ResultsThe results will be given to your doctor. Your doctor will talk to you about the results and treatment options. Call Your Doctor TOPAfter the test, call your doctor if any of the following occurs:
RESOURCES:American Academy of Orthopaedic Surgeons http://orthoinfo.aaos.org/ North American Spine Society http://www.spine.org/ CANADIAN RESOURCES:Canadian Orthopaedic Association http://www.coa-aco.org/ Canadian Orthopaedic Foundation http://www.canorth.org/ References:
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Last reviewed December 2011 by John C. Keel, MD Last Updated: 12/30/2011 | |