What Is It? Why It Came Back Treatment Options SCS vs DRG Request Consultation
Neuromodulation · Division of Spine and Spine Tumor Neurosurgery
Interactive Patient Education

When Back Pain
Persists After Surgery

Sometimes pain continues, or returns, even after a technically successful spine operation. This is called failed back surgery syndrome, or post-laminectomy syndrome. It does not mean you are out of options. Explore why it happens, the step-by-step path from injections and pain management to nerve stimulation, and what relief from a spinal cord or DRG stimulator can realistically look like.

Neon illustration of a lower spine: one healed surgical level glows red where pain persists after back surgery, with the irritated nerve tracing downward

What Is Failed Back Surgery Syndrome?

Failed back surgery syndrome (also called post-laminectomy syndrome) is the name for back or leg pain that continues, or comes back, after spine surgery. The word "failed" describes the pain, not you and not necessarily the operation itself. It is common, it is real, and it is treatable.

Spine surgery such as a laminectomy or discectomy is very good at taking pressure off a compressed nerve. But surgery treats a structure; it cannot always undo pain that a nerve has been carrying for a long time, and it cannot prevent the spine from changing again over the years that follow. When meaningful pain remains after the incision has healed, doctors call it failed back surgery syndrome.

This is not rare. Depending on how it is defined and the type of surgery, roughly 10 to 40 percent of people have lasting pain after lumbar spine surgery. It is more likely after more complex operations, after several previous surgeries, and when nerve-type (neuropathic) pain was already present before surgery.

The most important idea on this page is that failed back surgery syndrome is a starting point, not a dead end. There is a clear, stepwise plan: understand exactly why the pain is there, treat it with the least invasive tools first, and reserve nerve stimulation and any further surgery for when they are truly the right fit. Brown's neuromodulation team works alongside pain management, physical therapy, and psychology so that the next step matches your specific pain.

COMMON

You Are Not Alone

Persistent pain after spine surgery affects a large share of patients. It has recognized causes and established treatments.

FIND THE CAUSE

The "Why" Guides the "What"

Different causes call for different treatments. Pinpointing the source of pain is the first and most important step.

STEPWISE

Least Invasive First

Care moves in a ladder: rehab and medication, then injections, then nerve stimulation, with further surgery reserved for clear structural problems.

Why Did My Pain Come Back?

There is almost always a reason. Select a cause below to see what it means, whether it tends to cause back pain or leg pain, and how it changes the treatment plan. Most patients have more than one of these at once.

The Treatment Ladder

Care for failed back surgery syndrome climbs one rung at a time, starting with the safest, least invasive options. Select any rung to see what it involves and when it is the right next step. Most people stay on the lower rungs; nerve stimulation and further surgery are reserved for specific situations.

This ladder is a general framework, not a fixed sequence. A serious "red flag" finding can move you straight to surgery, and a clearly focal nerve pain can move you toward stimulation sooner. Your own path is decided with your care team.

How Nerve Stimulation Quiets Pain

When injections and medication are not enough, a small implanted device can change the pain signal itself before it reaches the brain. Choose a stimulation mode and watch what happens to the red pain pulses traveling up the spinal cord.

Interactive · Try It

Pain Signal Simulator

Select a stimulation mode below. Watch the red pain pulses travel up the cord, see how many still reach the brain, and read what the mode would feel like. When a mode is on, use the sliders to adjust frequency and amplitude.

Pain reaching brain
100%
You would feel
Full pain sensation reaches the brain — this is the baseline without stimulation.
Stimulation waveform
Best forBaseline comparison — showing what happens when the device is off.

This simulation is a simplified, educational illustration of how stimulation waveforms interact with pain signaling. It is not a measurement of your own pain or a prediction of your result.

Spinal Cord vs. DRG Stimulation

Two related forms of nerve stimulation are used for pain after spine surgery. They share the same trial-first, reversible approach but suit different pain patterns. Select a topic to compare them.

Both are placed only after a successful trial, and both can be reprogrammed, turned off, or removed. Which one fits you depends mostly on where your pain is and how focal it is. Your team helps decide.

What Can I Realistically Expect?

Honest expectations are part of a good outcome. Nerve stimulation is a pain-management therapy: the goal is meaningful, lasting relief and better daily function, not a cure. Because you test it with a trial first, you learn whether it helps you before committing.

≥50%
Trial Success Threshold
A permanent implant is offered when a short trial delivers at least about 50% pain relief along with better function.
~40%
May Not Get Lasting Relief
Stimulation is not a guarantee. A meaningful minority do not keep durable relief long-term, which is exactly what the trial is designed to reveal before an implant.
Reversible
Adjustable Over Time
Programming can be re-tuned as your pain changes, and the device can be turned off or removed if it stops helping.

Risks and Honest Trade-offs

Injections and stimulation are generally low-risk, but nothing is risk-free. Epidural steroid injections can cause temporary increased pain, a short-lived blood sugar or blood pressure rise, and rarely infection or a dural puncture headache; their benefit is often temporary and works best as one part of a plan. With an implanted stimulator, the most common issues are hardware-related: a lead can shift out of position (lead migration) and reduce coverage, the rechargeable battery eventually needs replacing, and there is a small risk of infection, bleeding, or a dural puncture headache. Uncommonly, the therapy simply does not provide lasting relief.

A stimulator also affects future care: your team will counsel you about MRI compatibility (many modern systems are MRI-conditional) and interactions with other implanted devices. Because the trial is reversible and low-commitment, it lets you weigh real benefit against these trade-offs before deciding on a permanent implant.

When Is Further Surgery Considered?

Most failed back surgery pain is managed without another operation. But some findings point back toward surgery, and a few are urgent. Knowing the difference helps you and your team choose the right next step, and know what to watch for.

Seek Care Urgently If You Have

  • !New or worsening weakness in a leg or foot, or a foot that drags
  • !Loss of bladder or bowel control, or new trouble starting or stopping urination
  • !Numbness in the groin or inner thighs (the "saddle" area)
  • !Fever, chills, drainage from the incision, or unexplained weight loss

These can signal cauda equina syndrome, infection, or a progressing nerve problem, and may need prompt surgery. Do not wait for a routine appointment; contact your surgeon or seek emergency care.

Further Surgery May Be Considered When

  • +Imaging shows a clear, fixable structural problem, such as a recurrent disc herniation, residual nerve compression, or significant new stenosis, that matches your symptoms
  • +There is gross instability or a failed fusion (pseudarthrosis) at the operated level
  • +A specific nerve target explains most of your pain and other options have not helped

Each additional back operation tends to have a lower chance of success than the one before, so revision surgery is reserved for a clearly identified target. Where the main problem is nerve-type pain without a fixable structure, stimulation usually offers a better risk-to-benefit balance than repeat surgery.

Common Questions

Does "failed" mean my surgery was done wrong?
No. Failed back surgery syndrome describes pain that persists or returns, not a mistake in the operating room. An operation can be technically excellent and still leave pain behind, because surgery fixes a structure while pain can come from scar tissue, a nerve that has been irritated for a long time, changes at nearby levels, or a combination. The label is about the outcome for your pain, not a judgment of the surgeon or of you.
Why would injections help if surgery did not?
Surgery and injections do different jobs. Surgery removes pressure on a nerve; injections calm inflammation and can quiet a specific pain generator such as an irritated nerve root, a facet joint, or the sacroiliac joint. Injections are also diagnostic: if numbing a particular structure relieves your pain, that tells your team where the pain is coming from and guides the next step. Relief from injections is often temporary, so they work best as one part of a broader plan rather than a permanent fix.
What is the difference between spinal cord and DRG stimulation?
Both deliver gentle electrical pulses to interrupt pain signals, and both use a trial-first, reversible approach. Spinal cord stimulation places a lead over the back of the spinal cord and covers broader areas, such as pain spread across a whole leg or both legs. DRG stimulation targets the dorsal root ganglion, a small cluster of nerve cell bodies for one specific region, so it excels at focal, hard-to-reach pain in a single area like the foot, knee, or groin. You can compare them side by side in the "Spinal Cord vs. DRG Stimulation" section above.
Will a stimulator cure my pain?
No. Stimulation is a therapy to manage pain, not a cure for its underlying cause. The realistic goal is a meaningful, lasting reduction in pain and an improvement in what you can do day to day, and many patients also reduce their pain medications. Because you try it with a temporary trial first, you get to find out whether it delivers that kind of relief for you before anything permanent is placed.
What kind of pain responds best to stimulation?
Nerve-type (neuropathic) pain, especially radiating leg pain, tends to respond best, including persistent leg pain after spine surgery. Purely mechanical, deep back pain that changes with movement is generally less responsive to traditional stimulation, though newer waveforms have improved results for back pain. Matching the type and location of your pain to the right therapy is a central part of deciding whether stimulation is likely to help.
Do I have to have another surgery, or can I avoid it?
Most people with failed back surgery syndrome are managed without another major operation. Further surgery is reserved for clear, fixable structural problems that match your symptoms, or for urgent findings such as new weakness or loss of bladder or bowel control. A stimulator implant is a much smaller, reversible procedure than a repeat spine surgery. Your team will only recommend more surgery when there is a specific target it can address.
Why is a psychological evaluation part of this?
Chronic pain and mood are deeply connected, and depression, anxiety, and sleep problems are common with long-standing back pain. A psychological evaluation is not a test of whether your pain is real; it is a standard part of getting the best result. Treating mood, sleep, and coping alongside the physical pain improves outcomes from injections and stimulation alike, which is why Brown uses a team that includes psychology and pain management, not just a surgeon.
Can I still get an MRI later with a stimulator?
Often yes. Many modern stimulation systems are MRI-conditional, meaning MRI scans can be done under specific settings; your team gives you a card describing your exact device and its limits. The device may also set off airport security detectors, so you carry an identification card. These practical points are reviewed with you before any permanent implant.

Who We Are

This educational resource was developed by Brown Neurosurgery to help patients and families understand the options for pain that continues after spine surgery. Our neuromodulation team works alongside pain management, physiatry, and psychology to find the cause, try the least invasive treatments first, and support you through any trial, implant, and long-term programming.

Evaluation & Trial Team

Norman Prince Spine Institute — they evaluate your pain, manage injections and medications, and place and manage the temporary stimulation trial.

Implant Team

Neurosurgery — they perform the permanent implant once a trial confirms meaningful relief, and any spine surgery if it is indicated.

For full faculty profiles, visit the Brown Neurosurgery website.

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