Exam time: 30-60 minutes
Most exams require patient to remain at CAI 30 minutes post-procedure.
If multiple levels are ordered additional time may be needed to
complete the procedure.
This diagnostic procedure identifies the source of irritation in
the nerves that run along the outer edge of the facet joints within
the spine. If multiple levels of pain exist within the facets, several
injections may be required on different days to pinpoint the pain
source in each location. By anesthetizing these nerves, the physician
can determine whether the nerve irritation would be best treated
by medication or by radiofrequency rhizotomy--which is why facet
nerve injections often serve as a work-up to an RF rhizotomy procedure.
Preparation/Restrictions:
- Stop blood thinners 4 days in advance; stop pain medication eight
hours in advance
- Patient should bring previous films
- Patient will need a driver.
Side Effects:
Side effects of the steroid medications--which affect only 5% of patients
and disappear within 1-3 days--include facial flushing, insomnia,
occasional low grade fever, and increase in blood sugar. |
