In-Depth Information
The Spine Diagnostic & Pain Treatment Center
Diagnosing Disc Pain

Discography, or a discogram, is a diagnostic tool used to determine the structural integrity of an intervertebral disc (or discs). It helps us determine if a particular disc is responsible for your back pain.
The test is performed on an outpatient basis with sedation. Fluoroscopy, an imaging technique that projects an X-ray picture onto a monitor, is used to guide the spinal needle into the suspect intervertebral disc. A radiopaque dye is then injected through the spinal needle into the nucleus of the disc.
During the test, we evaluate the dye pattern for leaks occurring outside the intervertebral disc walls. At this time, your symptoms (e.g., back pain, tingling sensation) may be replicated due to the pressure created by the dye injection (provocative discography).
Discography is indicated when a patient’s symptoms are severe and persist despite conservative therapy, when the results of other diagnostic tests (e.g., MRI) prove inconclusive and/or if a disc abnormality is suspected. We use the results of a discogram to confirm a diagnosis.
A CT scan is usually performed on the painful disc after the dye is injected to obtain images of the dye distribution. The CT scan will reveal annular tears, scarring, disc bulges and changes in the disc’s nucleus. The combination of discogram and CT scan helps us:
- Recreate painful symptoms/disc abnormalities
- Confirm a diagnosis/determine the specific source of pain
The discogram takes approximately 30 minutes plus an additional 30 minutes if a CT scan is indicated. Recovery time may be several hours. Both the discogram and CT scan are valuable diagnostic tools. In those cases where surgery is indicated, they can also provide us with a clearer picture of your specific problem prior to surgery.
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