The operation worked. You are still in pain. Both of those are true.

AFTER SPINE SURGERY / FAILED BACK SURGERY SYNDROME

Failed back surgery syndrome, pain that persists after a technically successful operation, usually comes from central sensitization, scar tethering a nerve root, extra load on the levels beside a fusion, or an operation aimed at the wrong target. The first job is to take those apart. Any remaining structural target is confirmed with a diagnostic block.

Failed back surgery syndrome is a terrible name for a real thing. It implies the surgeon failed, and usually nobody did. The decompression decompressed. The fusion fused. The imaging afterward looks like a technical success. And the pain is still there.

Why do I still have pain after back surgery?

Because the operation treated a structure. By the time you reached it, the problem was no longer only structural.

• Central sensitization. A nervous system that has handled pain signals for years changes how it handles them — the volume gets turned up. It does not turn back down because a disc fragment was removed. This is the single largest reason for lasting pain after technically sound surgery.
• Epidural fibrosis. Scar forms where tissue was disturbed. A nerve root caught in scar can no longer glide. Ordinary movement then pulls on it in a way it was never built for.
• Adjacent segment load. Fuse two vertebrae and the levels above and below take more. That is mechanics, not a complication, and it shows itself years later.
• The wrong target. Sometimes the structure that was operated on was not the structure causing the pain. Degenerative findings are common in spines with no pain at all, so this happens more than anyone would like.

The part that gets left out of the consent conversation

Two of those four can be foreseen before the knife. Central sensitization can be measured before surgery. Adjacent segment loading is a known result of fusion, not a surprise.

They get left out because the system pays for the operation. It does not pay for the hour of assessment that would have found them. That is medicalization doing what its incentives reward — the repeatable procedure gets paid, the upstream work does not — and the patient pays for the gap. Two years later, that patient sits in a chair and hears the scan looks fine.

How do you find the cause of pain after back surgery?

The first job is to stop treating “failed back surgery” as a diagnosis. It describes a situation. Situations have parts that can be taken apart.

• Is there a remaining structural target? A recurrent disc, a foraminal stenosis (narrowing where the nerve exits), an adjacent level. Confirmed with a diagnostic block, not guessed from a report.
• Is the sacroiliac joint involved? After lumbar fusion it very often is. It is routinely missed because everyone is still looking at the fused segment.
• Is a nerve tethered rather than compressed? That is a different problem with a different answer.
• How much of this is central? If the answer is most of it, more procedures will disappoint. The honest plan then looks different.
• What is the metabolic terrain? Insulin resistance and metainflammation impair every repair process this body must run. That includes healing around a surgical site.

The segments on either side are in the same body

An operation changes the mechanics at one level. It does not change the biology of the person who owns the spine. The discs above and below the fusion must now absorb more load, in the very conditions that broke down the first one.

Those conditions have been measured. One analysis pooled 20 Mendelian randomization studies of intervertebral disc degeneration (breakdown of the discs between the bones of the spine). The largest lifestyle effect you can change was sedentary time, at an odds ratio of 1.78 (95% CI 1.52 to 2.08) — ahead of body mass index (1.26), smoking initiation (1.22) and type 2 diabetes (1.05). This is the cruelty of life after surgery. Pain cuts down movement. Less movement itself drives more degeneration. So the next level fails faster than it otherwise would. A separate systematic review of 27 studies points the same way from the blood-vessel side. It found support for poor blood supply as a contributor to disc degeneration. Its results were mixed across the studies it included.

None of that is offered as a reason the operation was wrong. It is the reason a second procedure aimed only at the next level, in an unchanged body, tends to buy less time than the first one did. It is also why our plan after a failed back operation always has a metabolic part and a loading part alongside whatever is done to the spine. What we measure is on the metabolic health page.

Can PRP help pain after back surgery?

It fits where a specific structure has been found and that structure can respond. One example is a facet joint carrying load after a fusion. Another is a sacroiliac joint that has taken over. A third is a nerve stuck in scar. There, hydrodissection with platelet lysate can free it without adding inflammatory particles to an already irritable root.

It does not fit where the main mechanism is central, where there is progressive neurological deficit, or where hardware has failed. The first needs a different treatment. The other two need a surgical opinion.

Why lysate rather than PRP around a nerve · Facet joints · The sacroiliac joint.

What you can expect from us

• A fair view of your last operation. We were not there, and the last surgeon was usually not wrong.
• Treatment aimed at a confirmed target, not a series of injections into a guess.
• Your exam read alongside the scan. Every post-surgical spine shows post-surgical change, and that alone is not a target.
• A straight account of what biology can do. It does not reverse a fusion or regrow a disc.

The waiting, and what it costs

Most people arrive here years after the operation, not months. That gap is not neutral. It is worth naming what happens inside it.

A large share of people in that waiting period are inside a workers’ compensation or liability claim. There the delay is not a personal choice. It is a scheduling decision made by someone else — which is its own problem, set out on injury and work comp.

Less movement produces sarcopenic wasting — muscle lost from a trunk and legs that were already out of shape before surgery. Lost muscle worsens glucose disposal (how the body clears blood sugar). That raises the inflammatory tone the nervous system is already turning up. Sleep breaks up, and broken sleep measurably lowers pain thresholds. It also removes the overnight window when most tissue repair signals happen. Social life shrinks. Isolation is not a soft outcome — it raises inflammatory markers on its own.

So the person who arrives at year four is not simply four years older with the same problem. The problem has picked up a metabolic and behavioral part that was not there at the start. Treating the spine alone now addresses a shrinking fraction of it.

How do you fix failed back surgery syndrome?

• Take the problem apart first. Structural, neural, central — in what proportion? This is the step that is nearly always skipped.
• Treat what is confirmed, and only that. A block comes before a level.
• Free what is tethered rather than injecting around it blindly.
• Rebuild capacity deliberately. Graded loading, not rest. Supervised, not handed over on paper.
• Address the terrain. Blood sugar control, sleep, and the behavioral work a sensitized nervous system actually responds to — done here, not referred out to happen somewhere else in six months.
• Agree in advance what failure looks like, so there is a point where we stop rather than escalate.

That last item is the one most missing from this group’s history. Many people with lasting post-surgical pain have had a decade of interventions with no stated endpoint. That is how a treatment plan becomes a subscription.

Where this sits against pain medication

This group is the most likely to arrive on a rising opioid dose that nobody has revisited. They are also the most likely to have been made to feel their pain reflects something about them. Nobody here will require a taper as a condition of being assessed. The dose will not be read as a question of character. What we offer is the thing usually missing: a real attempt to work out which part of this is structural, which is neural and which is central — because those have different answers, and lumping them together is why nothing has worked.

Frequently asked questions

Does this mean my surgery was a mistake?

Usually not. An operation that succeeded on the anatomy can still leave pain, for reasons that are mostly foreseeable. How we think about surgery.

My scan looks fine. Why do I still hurt?

Because scans show structure, and by this point the problem is often neural or central. Structure is not the same as pain.

Can PRP fix a failed fusion?

No. Hardware failure and pseudarthrosis are surgical problems. How we assess.

Is my SI joint the problem now?

After a lumbar fusion it often is, and it is commonly missed. Hip, SI joint or lumbar spine?

What is failed back surgery syndrome?

It is pain that continues after a back operation that worked on paper. The decompression decompressed and the fusion fused. The scan afterward looks like a success, yet the pain is still there. The name suggests the surgeon failed, and usually nobody did. We treat it as a description of a situation, not a diagnosis. Then we take it apart into its structural, nerve and central pieces.

Can scar tissue after back surgery cause pain?

Yes. Scar forms wherever tissue was disturbed, which is called epidural fibrosis. A nerve root caught in that scar can no longer glide. So ordinary movement pulls on it in a way it was never built for. A tethered nerve is a different problem from a pinched one. Where it is confirmed, hydrodissection with platelet lysate can free the nerve. It does so without adding inflammatory particles to an already irritable root.

Why does the level next to my fusion hurt now?

Fusing two vertebrae makes the levels above and below take more load. That is mechanics, not a complication, and it often shows up years later. Those discs also live in the same body whose conditions wore out the first one. Pain that cuts down movement speeds that wear. That is why our plan pairs anything done to the spine with loading and metabolic work.

Do I have to stop my pain medication before you will see me?

No. Nobody here requires a taper as a condition of being assessed. Your dose will not be read as a question about your character. Many people with pain after back surgery arrive on an opioid dose nobody has revisited. What we offer is a real attempt to work out which part of the pain is structural, which is nerve-related and which is central, because each one has a different answer.

Related reading

• Failed neck surgery
• Spine and sacroiliac joint
• Platelet lysate
• Hip, SI joint or lumbar spine?