When the first back surgery did not fix the pain, the question is not 'should I have more surgery?' It is 'is there anatomy left to fix - and if not, is there a better tool?' Here is how LAOSS pain management physicians and spine surgeon Dr. Siamak Yasmeh decide between a spinal cord stimulator and revision surgery.
Sometimes the answer is a different tool, not a second incision.
Post-laminectomy syndrome (also called failed back surgery syndrome, or FBSS) is one of the hardest problems in spine care. The patient has already been through surgery - sometimes more than one - and the pain has not gone away. Sometimes it is back. Sometimes it is leg. Sometimes both. The instinct is often to operate again. That instinct is sometimes right and sometimes very wrong.
Revision spine surgery is the right answer when imaging and exam point to a specific, correctable mechanical problem - a screw that loosened, a fusion that did not heal, a disc that re-herniated at the same level, an adjacent segment that has now broken down. In those cases, fixing the anatomy can fix the pain. The catch is that scar tissue from the first surgery makes the second one harder - the planes are blurred, the dura is adherent, the nerve roots are tethered. Neurological risk goes up. Success rates run somewhere around 30-40 percent in published series - well below the 70-80 percent range you would expect from a first-time, well-indicated spine operation.
Spinal cord stimulation (SCS) is a fundamentally different tool. It is an implanted device - thin leads placed in the epidural space over the dorsal spinal cord, connected to a small pulse generator under the skin - that delivers programmed electrical impulses to the nerve fibers carrying pain signals. The pain does not get fixed; it gets modulated. The signal that was reaching your brain as chronic burning, electric, or aching leg pain gets reshaped before it arrives. Roughly 60-70 percent of properly selected patients get more than 50 percent pain relief at one year, and benefit is durable for many.
The LAOSS approach: imaging and diagnostic work to find out whether your pain is anatomically correctable or neuropathically diffuse - and route the answer accordingly. Not every failed back is a surgical problem.
Spinal cord stimulators have been around for decades, but the technology has changed dramatically. This short ViewMedica animation walks through where the leads sit, how the pulse generator delivers therapy, and what the trial week actually feels like.
Animations licensed from ViewMedica · Swarm Interactive
After a prior spine surgery, the anatomy is altered. Bone has been removed, hardware may be in place, and a layer of fibrotic scar tissue (epidural fibrosis) often surrounds the dura and nerve roots. Revision surgery means re-entering that scarred field to address a specific mechanical problem - hardware revision, fusion at a new level, removal of recurrent disc material. The exposure is harder, the dura is more vulnerable, and the nerve roots are tethered. A spinal cord stimulator works without disturbing any of that. Thin leads are placed in the epidural space above the cord through small needle insertions, connected to a battery-sized generator under the skin. Electrical impulses modulate the pain signal traveling up the dorsal columns - the pain does not get cut out, it gets reshaped before it reaches the brain.
The decision usually breaks down along four axes: anatomy, pain character, surgical history, and what we can prove.
Anatomy. Does your MRI, CT, or flexion-extension X-ray show a specific problem that explains your pain? A pseudarthrosis on thin-cut CT, a recurrent disc at L4-L5 matching an L5 radiculopathy on exam, hardware that has loosened, adjacent-segment stenosis above a prior fusion - these are mechanical problems with mechanical solutions. If the imaging is clean except for expected post-op changes, there is no anatomy to fix. Operating on pain without a target is how you end up with three failed back surgeries instead of one.
Pain character. Mechanical pain - worse with loading, position-dependent, relieved by lying down, reproducible on exam - often points back to anatomy. Neuropathic pain - burning, electric, stocking-distribution, constant, unaffected by position - is the SCS sweet spot. Many post-laminectomy patients have a mix; we map which component is dominant before we pick a tool.
Surgical history. First-time spine surgery has the best odds. Revision after one prior surgery has lower but real odds. Revision after two or more prior surgeries has very low odds and high risk. The more times the field has been opened, the harder the next operation is and the lower the chance of helping. A patient with three prior spine surgeries asking for a fourth is almost never the right answer.
What we can prove. Diagnostic injections - selective nerve root blocks, facet blocks, sacroiliac joint blocks - let us localize the pain generator before we commit to any procedure. If a transforaminal block at L5 gives 80 percent relief that matches the pain pattern, that is data. If the same block gives nothing, the L5 nerve root is not the answer and revision aimed at it will not help either.
Most failed back patients are not a coin flip - once imaging, exam, and diagnostic injections are in front of us, one path is usually clearly the better starting point.
When there is no clear surgical target, when pain is neuropathic, or when prior surgeries have already shown diminishing returns - SCS leads.
When imaging shows a specific, correctable mechanical problem that matches the exam and diagnostic injections - revision leads.
Spinal cord stimulation is the only major chronic pain therapy with a built-in test drive. Before any permanent implant, you wear the system externally for about a week and decide whether it actually helps your pain in your real life.
The trial is an in-office procedure under sedation and local anesthetic. Thin leads are placed in the epidural space through needles - no incision, no implant.
We do not advance to permanent implant unless the trial clears a clear bar - and that bar is the patient's lived experience, not just a pain score.
Both options are typically covered by commercial insurance and Medicare - but the documentation requirements and out-of-pocket exposure are different.
SCS is a covered service under commercial insurance and Medicare for FBSS and chronic radicular pain - but coverage requires a documented work-up and a successful trial.
Revision spine surgery is covered under commercial plans and Medicare when imaging and exam document a specific mechanical problem. The carrier wants to see that the indication is mechanical, not just persistent pain.
We will not oversell either tool. Here is the honest read on the FBSS literature - the numbers are sobering, which is why selection matters so much.
Modern SCS systems (high-frequency, burst, and traditional tonic) have stronger published data for FBSS than revision surgery does. The catch is that selection - including a successful trial - is what drives the numbers.
Revision spine surgery success rates run well below first-time spine surgery. The data is consistent across published series and is one of the strongest arguments for considering SCS first in the right patient.
These checklists are a starting point - the final call comes at evaluation with imaging, exam, and diagnostic injection data in front of us.
SCS is most often the right move when conservative care is exhausted, pain is neuropathic or diffuse, and there is no clear surgical target left.
Revision surgery makes sense when imaging shows a specific, fixable mechanical problem and the pain matches the anatomy.
Recovery timelines diverge sharply. The SCS path is measured in weeks. The revision surgery path is measured in months.
The trial is the lowest-risk week in spine pain medicine. You leave the office with leads taped to your back and a battery on your belt and go live your life.
If the trial works, the permanent implant is a same-day outpatient surgery. Generator goes under the skin (usually upper buttock or flank), leads are anchored.
Revision fusion or decompression is a real spine operation. Recovery is measured in months, not weeks, and the curve is steeper than first-time surgery because of scar tissue and altered anatomy.
Most failed back patients are not facing a permanent fork in the road. Both tools can stay on the table.
A common pattern at LAOSS: a patient with hardware failure on imaging and an obvious mechanical pain pattern goes to revision surgery first - the loose screws come out, the pseudarthrosis gets re-fused, the mechanical pain resolves. Months later, if a residual neuropathic component remains - that burning, electric leg pain that never quite went away - SCS can be layered on top. The revision fixed the mechanics; the stimulator handles the residual nerve pain.
The opposite is also true. A patient who tries SCS first and gets a 70 percent reduction in leg pain but still has a clearly mechanical adjacent-segment problem on later imaging is not stuck with the stimulator. The leads and generator stay in place and continue to do their job; revision surgery can still be performed at the mechanical level if the indication develops down the road. SCS does not foreclose surgery, and surgery does not foreclose SCS.
What is not appropriate is using either tool as a default. Operating on a failed-back patient with no clear anatomic target and expecting it to work is the path to a third failed back surgery. Implanting a stimulator in a patient who actually has a screw backing out and a discoverable mechanical pain generator is treating the symptom and ignoring the cause. The honest answer is the work-up that tells us which one your case actually is.
Both options are real procedures with real risks. Risk profiles diverge sharply - SCS is a small-footprint device procedure, revision is major spine surgery.
Spinal cord stimulator risks are mostly device-related and most are manageable. The biggest catch is response variability - even with a successful trial, real-world results can fade.
Revision spine surgery carries the risk profile of major spine surgery, with extra risk on top from scar tissue, altered anatomy, and prior hardware.
Failed back syndrome is one of the only orthopedic problems that genuinely requires both a pain management physician and a spine surgeon at the same table. At LAOSS, that conversation is built into how we work. Spinal cord stimulator trials and permanent implants are performed by our board-certified pain management physicians - Dr. Jose Antonio Acosta, Dr. Jason Kaushik, and Dr. Raj Desai - all of whom carry interventional pain training that includes SCS programming, lead placement, and long-term device management. Revision spine surgery is performed by Dr. Siamak Yasmeh, our fellowship-trained orthopedic spine surgeon. The pre-op work-up - imaging review, diagnostic injections, exam findings - is reviewed by both sides before we recommend a path. The person managing your pain talks directly to the person who would operate. No turf war, no false binary, no rushed answer.
Dr. Acosta saved me from spine surgery. I came in convinced I was going to need an operation. He laid out a non-surgical plan that's been working. So thankful.
Book a visit at any of our eight Los Angeles-area offices. Our pain management physicians and spine surgeon will review your imaging together and tell you straight whether SCS, revision surgery, or something else entirely is the right next step.
