Every level of your spine is held together at the back by a pair of small joints, one on each side. They are called facet joints, and they are true synovial joints — with cartilage, a capsule, and a nerve supply — which means they can hurt in exactly the way a knee or a thumb can hurt.
Facet joint syndrome is the name for pain that has been established to come from those joints. That word “established” is doing real work in the sentence, and it is the reason this page exists.
Facet-mediated pain is common. It is also over-diagnosed on imaging and under-diagnosed clinically, at the same time, for the same reason: arthritic-looking facet joints are visible in a great many people who do not hurt.
According to PubMed, a Framingham Heart Study CT analysis found facet joint osteoarthritis in 64.5 percent of a community sample, and — when all degenerative features were entered into a regression together — only spinal stenosis, not facet arthritis, was independently associated with self-reported low back pain (Kalichman L, et al. Spine J. 2010;10(3):200-8. DOI).
What that means in practice is that “facet arthropathy” on your report tells you almost nothing on its own. The useful number comes from studies that used anesthetic blocks rather than pictures. According to PubMed, a series using controlled comparative local anesthetic blocks found the prevalence of lumbar facet joint pain in chronic low back pain to be 34.1 percent (95% CI 28.8–39.8) — with a false-positive rate of 49.8 percent for a single block (Manchikanti L, et al. Pain Physician. 2020;23(5):519-530. PubMed — no DOI assigned).
Read that false-positive figure twice. Roughly half of people who respond to one block do not respond to the confirmatory one. A single positive injection is not proof, and treating it as proof is how patients end up with a procedure aimed at a joint that was never the problem.
Prevalence also depends on who is being examined. An earlier study in the same setting found facet joint pain in 21 percent of patients with low back pain alone, against 41 percent of patients whose pain involved multiple spinal regions (Manchikanti L, Hirsch JA, Pampati V. Pain Physician. 2003;6(4):399-405. PubMed). The authors noted explicitly that their results should not be extrapolated to the general population — a caveat worth repeating, because these figures get quoted without it constantly.
Facet joints carry more load as the disc in front of them loses height, which is why facet pain tends to arrive alongside disc degeneration rather than instead of it. Age is the dominant factor. Body weight matters measurably: in the Framingham CT data, facet joint osteoarthritis was significantly more prevalent in the obese group, with an odds ratio of 2.8 (95% CI 1.1–7.2) (Kalichman L, et al. J Back Musculoskelet Rehabil. 2009;22(4):189-95. DOI).
Beyond that: work or sport involving repeated extension and rotation, a prior fusion that transfers load to the level above, whiplash and other extension injuries in the neck, and the metabolic and inflammatory drivers this practice treats directly rather than referring out.
None of these features, alone or together, is reliable enough to make the diagnosis. They are reliable enough to decide who should be tested — which is a different and more honest use for them.
Examination. Extension and rotation loading, palpation over the joint line, and the pattern of what relieves it. This selects candidates; it does not diagnose.
Imaging, read against symptoms. Useful for excluding other things and for planning a procedure. Not useful for establishing that a particular joint is producing pain, for the reasons above.
The medial branch block, which is the actual test. Each facet joint is supplied by two small nerves called medial branches. Placing a tiny volume of local anesthetic on those nerves under fluoroscopic guidance switches that joint off temporarily. If the pain goes and you can perform movements that were painful before, the joint has identified itself. If it does not, it has not — and that is useful information rather than a wasted appointment.
Because of the false-positive rate, a confirmatory second block with an anesthetic of different duration is what the diagnosis is properly held to. Relief that tracks the drug — shorter with the short-acting agent, longer with the long-acting one — is considerably harder to explain away than a single good day.
These are performed under local anesthetic with no sedation. Patients are awake and responsive throughout, which matters here more than usual, because the whole value of the test depends on you being able to report accurately what changed. Most patients drive themselves home and resume normal activity, including work, within two to four hours.
Conservative care. Extension-limiting activity modification, targeted physical therapy building hip and core control, and addressing the load and inflammatory drivers — medical weight management and lifestyle medicine are treatment for a load-bearing arthritic joint, not adjuncts to it.
Facet joint injection. Anti-inflammatory medication placed into or around the joint. Also performed without sedation.
Therapeutic medial branch blocks. Worth knowing that the blocks themselves can be treatment and not merely a test. According to PubMed, a randomized, double-blind, controlled trial of 120 patients selected by controlled comparative diagnostic blocks reported significant pain relief and functional improvement in 85 to 90 percent of patients at two years, with an average of five to six treatments over that period and roughly 19 weeks of relief per episode of treatment (Manchikanti L, Singh V, Falco FJE, Cash KA, Pampati V. Int J Med Sci. 2010;7(3):124-35. DOI).
That result deserves both halves of an honest reading. It is a randomized double-blind trial with two-year follow-up, which is more than most interventional pain evidence offers. It also enrolled only patients who had already passed a controlled double-block filter — so it describes what happens in a rigorously selected population, not what happens to everyone with back pain. Selection is doing much of the work, which is precisely the argument for doing the diagnostic step properly.
Radiofrequency ablation. Where blocks confirm the joint and give real but temporary relief, heating the medial branches interrupts the pain signal for a longer period. The nerves regenerate over time, so this is a repeatable treatment rather than a permanent one — and it is repeatable precisely because nothing is removed or fused. Also performed without sedation.
Surgery is not part of the treatment plan for facet joint syndrome itself. There is no operation that treats an arthritic facet joint the way a knee replacement treats an arthritic knee, and fusing a segment to eliminate motion at a painful facet joint is a large intervention with consequences at the levels above and below it.
That is a statement about this condition, not about this practice — Dr. Gurpreet Singh Padda, MD, MBA, MHP is a licensed physician and surgeon with surgical privileges, and surgery is performed here for the conditions where it is indicated.
Surgery enters the conversation for a patient with facet arthritis when something else is present: significant instability, a slip that is progressing, or nerve compression from facet overgrowth crowding the canal or the foramen. In those cases the operation is aimed at the instability or the compression, not at the joint pain. Where the facet joints themselves are the confirmed generator, the durable answer is a repeatable, non-destructive one.
If your back is worse standing and arching and better sitting forward, the facet joints are worth testing directly rather than inferring from a report. We see patients from across St. Louis, Florissant, Chesterfield and the Illinois Metro East. Call (314) 481-5000 or request an evaluation.
Not by itself. Facet joint osteoarthritis was present in 64.5 percent of a community CT sample, and in that same analysis it was not independently associated with reported low back pain once other factors were accounted for. The finding describes the joint’s condition. Establishing that the joint is generating your pain takes an anesthetic block. Read more: Facet joint pain explained.
Because roughly half of single positive blocks do not confirm on a second one — the measured false-positive rate for a single lumbar medial branch block was 49.8 percent. A confirmatory block using an anesthetic of different duration, where the relief tracks the drug, is much harder to explain away. It is the difference between a promising result and a diagnosis. Read more: Diagnosing facet pain with a medial branch block.
A facet injection puts medication into or around the joint itself. A medial branch block anesthetizes the two small nerves that carry sensation from that joint — which is what makes it a clean diagnostic test and what identifies the targets for radiofrequency ablation if that becomes the plan. Read more: The medial branch nerves and what they supply.
No, and that is by design rather than a shortcoming. The treated nerves regenerate over months to a couple of years, and the procedure can be repeated when they do. Nothing is removed and nothing is fused, so the treatment does not close off other options. Read more: Radiofrequency ablation for back and neck pain.
No. Facet injections, medial branch blocks and facet radiofrequency ablation are all performed under local anesthetic with no sedation. You stay awake and responsive — which is essential for a diagnostic block, since the test depends on you reporting accurately what changed — and most patients drive themselves home and resume normal activity, including work, within two to four hours. Read more: What to expect at your first appointment.
Frequently, and it is one of the main reasons back pain gets treated unsuccessfully. Facet-mediated pain was found in 21 percent of patients with low back pain alone against 41 percent of those with pain in several spinal regions — multiple generators is the normal state, not the exception. The work is establishing which one is producing which part of your pain. Read more: Chronic low back pain rarely travels alone.
It addresses the mechanism, which is more than most interventions do. Facet joint osteoarthritis was nearly three times as prevalent in the obese group in community CT data, and these are load-bearing joints whose cartilage responds to both mechanical load and inflammatory environment. Weight and metabolic health are treated here as part of spine care rather than as somebody else’s problem. Read more: Visceral fat and metabolic inflammation.
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