A discogram is
an X ray examination of the intervertebral
discs. This test is used to determine which
disc(s) are damaged and if surgery is necessary.
The test is performed by injecting dye into
the center of the injured disc(s). The dye
makes the disc clearly visible on X ray film
and a fluoroscope screen. This test is better
than an X ray or myelogram for determining
if there is a disc problem. The dye helps
the physician make an accurate diagnosis.
A simple X ray shows only the vertebrae, and
a myelogram is best for assessing the spinal
canal.
With a discogram, you will
be given medication to help you relax, then
a local anesthetic. The procedure usually
lasts about 40 minutes.
