40 Burton Hills Blvd., Suite 500
Nashville, TN 37215
ph: 615.234.5900
fx: 615.234.7994
Understanding Diagnostic Injections: Discography (Discogram)
Discography is a specific test to tell if a damaged or abnormal disc is causing pain. This is not a routine test. It may be performed prior to spinal disc surgery to determine which disc levels will be treated.
Discography, an invasive procedure, is performed using fluoroscopy (similar to x-ray, except in real time). To help you relax during the procedure, mild sedation may be administered. An antibiotic may also be given intravenously before and after. You may be positioned, with pillows for support and comfort, on your side, or in another position. The injection sites are cleansed using an antiseptic and an anesthetic numbs the skin.
Using fluoroscopic guidance, a contrast agent is injected into the center of select discs. Contrast enhances the disc’s anatomical characteristics and may spread outside the disc if abnormal. As each disc is injected with contrast, you are asked to describe your symptoms, such as the intensity and type of pain experienced. When discography replicates your symptoms, it is called a positive discogram. If symptoms are not replicated, it is a negative discogram. Discography can be uncomfortable and symptoms are temporary.
The procedure may take 45-minutes, depending on the number of discs examined.
