What is a discogram?
A discogram is a diagnostic test that is
performed to view and assess the internal structure of a disc and to
determine which disc is the source of pain.
Why do I need a discogram?
A discogram helps determine the anatomical
source of low back pain for the patient and enables the physician to view
the disc itself. The results of the discogram may confirm the
necessity for surgery and/or determine the exact cause of a person's back
pain, which will increase the likelihood of a successful outcome.
What happens during the
test?
The patient is awake during the test in order
to tell the discographer what kind of pain is generated by the
injection. The test is done as an outpatient procedure under sterile
conditions at the Glasgow Surgical Center. Medication will be given to
help with relaxation. The patient will be positioned on their abdomen,
their lower back will be cleaned with an antiseptic and the doctor will
insert a needle with a local anesthetic into the skin to numb the
area. An X-ray machine (fluoroscopy) is used to help guide the needle
into the suspected problematic disc and then a radiopaque dye is injected
through the spinal needle into the center of the disc. A patient's
pain may be replicated due to the pressure created by the dye. A CT is
performed after the dye is injected to obtain images of the dye
distribution. You will be discharged 1-2 hrs after the procedure.
Following the discogram...
Arrange to have a ride home. Drink
plenty of fluids to clear dye from the body. Expect to have localized
pain and increased discomfort for 2-4 days after the procedure.
Considerations
Prior to the injection, please notify us if
there is any allergy to contrast dye or if you are pregnant. The incidence of disc infection
is rare and is reported at 7 per 1000 per disc level tested. Nevertheless, antibiotics are injected into the disc to decrease the risk.
How do I get ready?
Do not eat solid foods after midnight the day
before the test. Dress comfortably on the day of the test and try to
relax.
