Cervical, Thoracic, and Lumbar
Discography
What are the discs?
The discs are soft, cushion-like pads which separate the hard vertebral
bones of your spine. A disc may be painful when it bulges, herniates,
tears or degenerates and may cause pain in your neck, mid-back, low
back and/or arms, chest wall, abdomen and legs. Other structures in
your spine may also cause similar pain such as the muscles, joints and
nerves. Usually, we have first determined that these other structures
are not your sole pain source (through history and physical examination,
review of x-rays, CT/MRI, and/or other diagnostic injection procedures
such as facet and sacroiliac joint injections and nerve root blocks)
before performing discography.
What is discography and why is it helpful?
Discography confirms or denies the disc(s) as a source of your pain.
It is a relatively simple procedure that uses a small needle to inject
contrast dye into your disc. MRI and CT scans only demonstrate anatomy
and cannot absolutely prove your pain source. In many instances, the
discs may be abnormal on MRI or CT scans but not be a source of pain.
Only discography, which is a functional test, can tell if the disc itself
is a source of your pain. Therefore, discography is done to identify
painful disc(s) and help the surgeon plan the correct surgery or avoid
surgery that may not be beneficial. Discography is usually done only
if you think your pain is significant enough for you to consider surgery
or more advanced treatment options.
What will happen to me during the procedure?
An IV will be started so that antibiotics (to prevent infection) and
relaxation medicine can be given. You will lie on your back for cervical
discography, on your belly for thoracic discography, and on your side
for lumbar discography. Your skin will be well cleaned. Next, the physician
will numb a small area of skin which may sting for a few seconds. Next,
the physician will use x-ray guidance to direct a small needle into
your disc. You may feel temporary discomfort as the needle passes through
the muscle or near a nerve root. The physician may repeat this at several
adjoining disc levels. After the needles are in their proper locations,
a small amount of contrast dye is injected into each disc. If a disc
is the source of your usual pain the injection will temporarily reproduce
your symptoms. If a disc is not the source of your pain than the injection
will not reproduce your symptoms or cause any discomfort.
What should I do after the procedure?
Immediately afterwards you may be taken for a CT scan. You should not
drive for eight hours following this procedure. You will wait 30-45
minutes after your CT scan to go home. You will be given, if desired,
a prescription for pain medication over the next 2-3 days when your
muscles may be sore.
General Pre/Post Instructions
You should eat a light, but not a full meal at least 2 hours before
the procedure. If you are an insulin dependent diabetic do not alter
your normal food intake. Take your routine medications before the procedure
(such as high blood pressure and diabetes medications). Stop aspirin
and all anti-inflammatory medications (e.g. Motrin/Ibuprofen, Aleve,
Relafen, Daypro) 3 days before the procedure. These medicines may be
re-started the day after the procedure. You may take your regular pain
medicine as needed before/after the procedure. If you are on coumadin,
heparin, lovenex, plavix or ticlid you must notify my office so that
the timing of stopping these medications can be explained. If you are
on antibiotics please notify our office, we may wait to do the procedure.
If you have an active infection or fever we will not do the procedure.
You will be in the hospital as an out-patient for 2-3 hours even though
you see the physician for 20 minutes. You will need to bring a driver
with you. You may return to your current level of activities the next
day including return to work.
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