Back injections stopped working · St. Louis
Diminishing returns are information. Most people are offered another appointment instead.
Back injections stop working for one of five reasons. The diagnosis was never confirmed. The pain generator moved. Central sensitization took over. Whole-body inflammation is working against the steroid. Or nothing was rebuilt during the relief window. Each one changes the plan, and another identical injection answers none of them.
The first one helped for months. The second for weeks. The third barely at all. That pattern has a small number of explanations and every one of them changes the plan.
Why do back injections stop working?
- The diagnosis was never confirmed. An injection aimed at a level that no test pointed to may have worked through spread of the anesthetic (numbing medicine), or through expectation. This is the most common explanation, and the cheapest to check with a diagnostic block.
- The generator has moved. Spines shift load around. Treat one level and the one above takes more — the same mechanism that makes adjacent segment pain (pain at the next level) so common after fusion. The original target may now be the wrong one.
- Central sensitization has taken over. After long enough, the nervous system keeps the pain going on its own, apart from the original input. No peripheral injection reaches a signal held in the central nervous system, and more of them will not.
- The terrain is working against it. Steroid landing in a body that is inflamed throughout and insulin-resistant is being asked to hold out against a whole-body process. It cannot outrun it.
- Nothing filled the window. The relief was real, but nothing was built during it. So the tissue that failed was in exactly the same state when the drug wore off.
The fifth one is the most common and the least discussed
Interventional treatment buys a period of quiet. If that time is spent resting rather than reconditioning, the same load meets the same unprepared tissue at the end of it. The procedure did what it could; the plan around it did not exist.
This is why roughly 40 to 50 percent of the protocol here is behavioral and lifestyle work. It is delivered in-house rather than referred out. It is the part that decides whether relief builds on itself or resets.
What is the next step if back injections don’t work?
- Re-examine rather than re-book. Findings change, and the last exam may be a year old.
- Confirm or re-confirm the generator with a block, including at adjacent levels.
- Assess honestly for sensitization — widespread tenderness, allodynia (pain from a light touch), poor sleep, pain out of proportion to load. If that is the picture, more procedures are the wrong tool and we will say so.
- Consider the durable option where facets are confirmed: radiofrequency neurotomy rather than repeated steroid.
- Look at the terrain with actual bloodwork. Why.
On steroid specifically: repeated exposure has effects that add up on bone density, glucose control and the adrenal axis (the stress-hormone system). Shrinking benefit plus growing exposure is a poor trade. It is a reason to change course rather than a reason to push through.
Do I have to taper opioids before I can be assessed?
Many people arrive at this point on rising opioid doses, because the procedures disappointed and something had to fill the gap. Nobody here will make a taper a condition of being assessed. Nobody will treat the dose as a question of character. What interventional treatment can do is reduce the input the medication is covering. That is what makes reduction possible where it is wanted.
Frequently asked questions
Does this mean nothing will work?
No. It usually means the target is wrong, the mechanism has changed, or the surrounding plan is missing. All three can be addressed. A shortening gap between flares is information in its own right.
Should I just have surgery instead?
Only if there is a structural problem that an operation actually corrects. Failed injections are not, by themselves, a reason for surgery. Before you agree.
Is it in my head?
No. Central sensitization is a measurable physiological state, not a psychiatric diagnosis. It responds to a different kind of treatment than a joint does. That is the entire reason for telling it apart.
How many times can you have spinal injections?
There is no number that makes the next one right. Each injection should be judged by what the last one bought you. Repeated steroid exposure adds up, with effects on bone density, glucose control and the adrenal axis, so shrinking relief plus growing exposure is a poor trade. That pattern is a reason to change course, not to push through.
Why did my first injection work but the later ones did not?
Months of relief, then weeks, then almost none, has a short list of causes. The pain generator may have moved to a neighboring level. The nervous system may now be keeping the pain going on its own. Whole-body inflammation may be working against the steroid. Or nothing was rebuilt during the relief. Each cause points to a different plan.
What should I do during the relief window after an injection?
Recondition, do not rest. The injection buys a period of quiet. If that time is spent resting, the same load meets the same unprepared tissue when the drug wears off. That is why behavioral and lifestyle work makes up a large share of the protocol here, delivered in-house. It decides whether relief builds on itself or resets.
Is radiofrequency ablation better than repeated steroid injections?
Where a diagnostic block has confirmed the facet joints as the source, radiofrequency neurotomy is the more durable option. It makes more sense than another round of steroid. The key word is confirmed. If the block was never done, or was done at the wrong level, that check comes first. That includes the levels next to the original target.
Related reading
Flares getting closer together is information, and so is what shortens them.
You get to try a stimulator before committing to it, which is unusual in this field.
Bring the list of what you have had and what each one bought you
The pattern of diminishing returns is diagnostic in itself, and it usually points somewhere specific.
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
- Fitzcharles MA et al. Nociplastic pain: towards an understanding of prevalent pain conditions. Lancet (London, England), 2021. PubMed 34062144
- Kaplan CM et al. Deciphering nociplastic pain: clinical features, risk factors and potential mechanisms. Nature reviews. Neurology, 2024. PubMed 38755449
- Volcheck MM et al. Central sensitization, chronic pain, and other symptoms: Better understanding, better management. Cleveland Clinic journal of medicine, 2023. PubMed 37011956
- Velasco E et al. Is chronic pain caused by central sensitization? A review and critical point of view. Neuroscience and biobehavioral reviews, 2024. PubMed 39278607