BEFORE YOU AGREE TO THE OPERATION
Someone has offered to fuse your spine.
It may well be the right answer. But it is a door that only opens one way, and most people are asked to walk through it without having seen what else was on the table.
This page is not an argument against surgery
Spine surgery fixes things nothing else fixes. Progressive weakness, a deficit that is worsening, cauda equina, instability that can be demonstrated rather than inferred, a deformity that is measurably progressing — those get operated on, and delay costs function that does not come back. This practice performs surgery itself where it is indicated, so this is not a turf argument.
The argument is narrower and it is about sequence. An operation should follow a named pain generator, not substitute for finding one. When a fusion is offered on the basis of the worst-looking level on an MRI, in a person whose pain has never been localized by any test, the operation is being asked to answer a question nobody has posed.
How long has this been going on?
The answer changes the advice more than almost anything else in your history, so it is worth being honest about where you sit.
UNDER SIX WEEKS
Most of this resolves without anyone operating. The odds are strongly on your side and the main job is to avoid decisions that are hard to undo. Keep moving within tolerance, treat a red flag as urgent rather than as a reason to panic, and be wary of anyone reaching for a permanent solution this early.
SIX WEEKS TO SIX MONTHS
This is the window where the decision gets made badly. Pain has outlasted the reassurance, patience has run out on all sides, and an operation starts to sound like the only thing left. It is also the window in which a targeted diagnostic block is most likely to change what anyone recommends. Find out which structure is generating the signal before agreeing to fuse the one that looks worst on film.
SIX MONTHS TO TWO YEARS
By now the nervous system has learned the pain. The problem is rarely only mechanical: central sensitization, accumulated sleep debt and metabolic inflammation are all part of what keeps it running, and an operation addresses none of them. This is the period in which failed back surgery syndrome is generated — a diagnosis common enough to have its own name, which should tell you something. The structure was fixed. The signal was not.
LONGER THAN TWO YEARS
You have been managing this longer than most of the doctors you have seen have treated you, and you know your own pattern better than any intake form will capture. What is usually missing is not effort but a model that accounts for all of it at once. The interventional work buys a window; what fills it decides whether you are back here in a year.
The three questions worth asking before you sign
- Which structure is generating my pain, and how do you know? “The MRI shows degeneration at L4–5” is not an answer to this question, because that finding is present in enormous numbers of people the same age who have no pain at all. An answer is a positive test.
- What is the specific goal, and how will we know if it was met? Decompression of a nerve root that is producing measurable weakness has a clear endpoint. “Reduce your pain” does not, and an operation with no defined endpoint cannot fail visibly, which is its own kind of problem.
- What happens to the levels above and below? Fusing a segment transfers load to its neighbors. Adjacent segment change is a known consequence rather than a complication, and it belongs in the conversation before the decision rather than after it.
Why a fused spine can still hurt
Two reasons, and they are different from each other. The first is mechanical: fusion removes motion at one segment and the demand does not disappear, it moves. The facets one level up now do more work than they were built for, which is why a fused patient so often turns out to have a facet-mediated pain that responds to a block at the adjacent level.
The second reason is that the nervous system does not automatically stop signaling when the anatomy is corrected. Months of nociceptive input change the gain in the dorsal horn. Sensitized tissue reports ordinary load as threat. That is not a psychological phenomenon and it is not the patient being difficult; it is a measurable physiological state that an operation on bone was never going to reverse.
Add the third driver, which is rarely on the consent form at all. A person going into a fusion with insulin resistance and chronic metabolic inflammation heals a bone graft more slowly, holds tissue in a degradative state for longer, and starts rehabilitation from further back. The surgery is the same. The terrain it lands on is not.
What we would do first
Examine, name a candidate structure, and test it. If a medial branch block abolishes the pain, the facets are the generator and radiofrequency neurotomy gives a durable answer without altering the architecture of your spine. If the sacroiliac joint reproduces on provocation and quiets on injection, that is a different answer again, and it is one that a lumbar fusion would have missed entirely.
If those tests are negative and the imaging shows real compression matching real deficit, then the surgical opinion you were given was right, and you will have walked into it knowing why rather than hoping.
A second opinion is not disloyalty to your surgeon. Good surgeons ask for them. The reason to get one is not that you distrust the recommendation; it is that a decision this permanent deserves two independent looks, and the second look costs an appointment.
The part that happens after, whichever way you go
Whether you have the operation or avoid it, the same work decides the result. Sleep is when disc and muscle actually repair, so a back program that ignores sleep is missing the repair window entirely. Load has to be reintroduced deliberately rather than avoided indefinitely, because deconditioned tissue fails at lower thresholds and the avoidance itself becomes a driver. And the behavioral component — Acceptance and Commitment Therapy, delivered in-house here by a licensed pain-trained clinician rather than referred out — is what stops a sensitized nervous system re-learning the pain the first time something flares.
Questions people ask at this point
Is spinal fusion ever reversible?
Practically, no. Hardware can be removed and adjacent levels can be addressed, but the fused segment does not regain motion. That asymmetry is the whole reason to be certain first.
If I wait, am I making it worse?
For most non-emergency back pain, no — waiting a few weeks to get a diagnostic answer does not cost you the surgical option. The exception is a progressive neurological deficit, where waiting does cost function permanently. That is the distinction the red flags page exists to draw, and it is worth reading before you decide to be patient.
My surgeon says the disc is clearly the problem. Why test?
Because a disc that looks abnormal and a disc that hurts are two different findings, and imaging cannot separate them. If the disc really is the generator, a discogram or a targeted block confirms it and you proceed with more confidence than you had. If it is not, you have avoided an irreversible operation on an innocent bystander.
Does having a block first delay the surgery much?
A diagnostic block is a short outpatient appointment and the answer arrives within hours. In practice it adds a week or two to a decision you will live with for decades.
Related reading
- The diagnostic block, explained
- When the operation worked and the pain stayed
- What your MRI actually showed
- When back pain is an emergency
- Back pain doctor in St. Louis
If you want a second read before you decide, that is a conversation we have most days
Bring the imaging and the surgical recommendation. We will tell you what we think is generating the pain, how we would prove it, and whether the operation you have been offered still looks like the right one.
12174 Natural Bridge Rd, Suite 301
St. Louis, MO 63044
At DePaul Hospital on Natural Bridge Road, inside the I-270 and I-70 interchange, on the west side of the airport.
Sources
- Saltychev M et al. Lumbar fusion compared with conservative treatment in patients with chronic low back pain: a meta-analysis. International journal of rehabilitation research. Internationale Zeitschrift fur Rehabilitationsforschung. Revue internationale de recherches de readaptation, 2014. PubMed 23820296
- Yavin D et al. Lumbar Fusion for Degenerative Disease: A Systematic Review and Meta-Analysis. Neurosurgery, 2017. PubMed 28327997
- Ravishankar P et al. Analysis of Patient-reported Outcomes Measures Used in Lumbar Fusion Surgery Research for Degenerative Spondylolisthesis. Clinical spine surgery, 2022. PubMed 34724455
- Qaseem A et al. Noninvasive Treatments for Acute, Subacute, and Chronic Low Back Pain: A Clinical Practice Guideline From the American College of Physicians. Annals of internal medicine, 2017. PubMed 28192789