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Facet Joint Injections
Facets are the small joints between the bones in your
spine. When these joints are injured or develop arthritis, bone rubs
against bone and produces pain.
Purpose
Facet joint injections are used to decrease and/or
to evaluate pain in the back or neck. Some types of headaches (cervicogenic
headaches) may also be treated by injection of the upper cervical facets.
Procedure
Prior to the injections, an intravenous line (IV)
will be started, and you will be placed on a monitor that will check
your blood pressure and heart rate. You will be asked to lie on your
stomach supported by pillows. Patients are usually given small amounts
of sedation before going further. You should experience reduced anxiety
and pain with partial or total amnesia. A radiology technologist will
use an X-ray machine to locate the joint(s) of the spine to be injected.
Your back will be cleaned with a special solution and draped with sterile
drapes. The doctor will numb the injection sites with local anesthetic.
You will feel pressure sensations in your back as the doctor inserts
the needle with mild discomfort while placing the needle in the correct
position. The doctor will then inject a small amount of local anesthetic
mixed with long-acting steroids into the facet joint. The medication
is injected near nerves providing loss of sensation to the area of pain.
The needle will be removed, and you will be taken to the recovery room.
There you will be asked to lie down for 15-30 minutes while you continue
to be monitored.
Potential Risks
- There are very small risks of bleeding or infection at the injection
sites.
- The procedure may make your pain worse or cause residual pain.
- Although very rare, damage to the spinal nerve or spinal cord near
the injection site may cause the following: paralysis or partial muscle
weakness, persistent numbness or injury to blood vessels.
- Rarely, reactions to the local anesthetic drugs can cause flushing,
ringing in your ears, or in very rare instances, seizures.
- Allergic reactions to medications may cause your heart and breathing
to stop or may cause death.
Side Effects
- You may experience increased pain for 24 to 48 hours after the injection.
- Temporary numbness, tingling, or weakness in one or both legs or
arms may occur depending on whether your injections were in the neck
or lower back. These sensations will wear off within a few hours.
If these sensations continue or worsen, please call The Pain Treatment
Center or on-call doctor.
Course of Treatment
It is not possible to predict to what extent, if any,
this treatment will relieve your pain. It is important to note the amount
of relief you get after this procedure and the length of time the relief
lasts. Although positive results are usually seen after the first injection,
a second procedure known as radiofrequency lesioning may be necessary
for long-term pain relief. To be most effective, facet joint injections
should be combined with programmed exercises. Your pain management doctor
can discuss types of exercises with you. Your doctor may also recommend
that you schedule an appointment with our Behavioral Medicine doctors
to discuss stress management techniques. You may also be asked to stop
smoking.
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Pain Concerns
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