Discography
One of the most common and disabling causes of low
back pain stems from the intervertebral disc. It is most frequent
in younger people who have suffered some traumatic injury to their
back. Pain from the intervertebral disc is caused by a tear in the
back of the disc which may occur as a consequence of the trauma.
Signs and Symptoms of Disc Pain
1. Deep aching back pain
2. Pain with standing
3. Pain with sitting
4. Pain with extension and flexion of the spine
5. Frequently cannot get comfortable in any position
6. Conservative treatment such as physical therapy,
anti-inflammatory medications, spinal injections and activity
modifications are not helpful.
Radiology Studies
Back x-rays, MRI scans and CT scans are helpful but frequently are
reported as normal since these studies do not always reveal a tear
in the disc.
What Causes Disc Pain?
Normally the disc is not a painful structure. The disc has no
nerve fibers inside the disc and only a few nerve fibers in the
back and sides of the disc. When a tear occurs in the disc, new
“hypersensitive” nerve fibers and blood vessels grow into the
tear. Now even relatively small amounts of pressure on this disc
may cause pain.

When your doctor suspects that your pain is
caused by a tear in one of the discs in your back, a discogram is
performed to:
1. Determine the internal structure of your disc.
2. Determine which of your discs is the source of your pain.
3. Measure the pressure inside your disc which:
a) reveals the structural integrity of the disc
b) provides a guide to further treatment normal disc disc
with annular tear
How is a Discogram Performed?
A
discogram is performed in a specially equipped procedure room. You
will be admitted to Croisan Ridge Surgery Center where an
intravenous catheter will be placed so that you can receive
sedation and antibiotics. Since the discogram is done under live
x-ray (fluoroscopy) you will be positioned on a special x-ray
table. Under local anesthesia and intravenous sedation, a needle
will be guided into your disc. X-ray dye is then injected into the
disc so that your doctor can see the internal structure of your
disc on an x-ray monitor. As your doctor is injecting the dye into
the disc, you will be asked to tell the doctor when you experience
your usual discomfort. Pressure measurements are also being taken
inside your disc to determine its structural integrity and to
provide a guide to further treatment.

What to Expect
After the discogram you will be monitored in a
recovery room for at least thirty minutes or until you are
sufficiently comfortable to go home. You may have soreness at the
injection sites as well as muscle tightness in the back. Applying
a cold pack to the uncomfortable area for fifteen minutes every
two hours for the next twelve hours is very helpful.
After your discogram, a CT scan of your spine
will be done so that cross-sectional images can be obtained to
further define the extent of the disc tear.
After you are discharged from the surgery center
and finished with your CT scan, you should go directly home and
lie down for the rest of the day. You will not be permitted to
drive a motor vehicle for at least 24 hours after your procedure.
We strongly recommend that you avoid any vigorous activity for the
next several days.
Call your doctor immediately if you have a
fever, increasing back pain, weakness in your legs, or
incontinence of bladder or bowel. |