A targeted injection used to prove which structure is generating your pain.
What it is
Where several structures could plausibly explain the same pain, a small amount of local anaesthetic placed precisely on one of them settles the question. If the pain goes while the anaesthetic is working, that structure is the source.
What we use it for
- Uncertainty between facet, disc and sacroiliac sources of low back pain
- Distinguishing referred pain from local pathology
- Before committing to a longer-lasting procedure
What to expect
- Performed under image guidance.
- You keep a pain diary for several hours afterwards — this is the actual result.
- Relief is deliberately temporary.
Risks
Every injection carries a small risk of bleeding, infection, an allergic reaction, or a temporary increase in pain. Steroid can raise blood sugar for several days. Serious complications are rare, and the specific risks for your procedure will be discussed before you consent.
Call (314) 310-5577 or request an appointment.
Common questions
What if the block does not help?
That is a useful result. It rules a structure out and redirects the search rather than wasting a longer procedure on the wrong target.
Hurt in an accident? Start here.
You do not need a lawyer, a police report or a referral to be seen. Bring your symptoms and we will work out the rest.
Monday–Friday, 8:00 a.m. – 4:00 p.m. Same-day appointments are often available for new accident and injury patients.