Spine surgery second opinion

Your back surgery
didn't fix the pain.
Or you're not sure you need it.

Spine surgery has among the highest rates of unnecessary procedures and unsatisfying outcomes of any surgical specialty. Whether you're considering surgery for the first time, dealing with chronic pain after a procedure, or facing hardware complications — a fellowship-trained spine specialist review gives you a clear, unbiased assessment.

Fellowship-trained spine specialists
Written report in 4 business days
Educational & informational · No referral needed
Before surgery

Been told you need
spinal fusion?

Spinal fusion is one of the most overperformed surgical procedures in the United States. The rate at which patients receive lumbar fusion surgery varies by a factor of seven between different geographic regions — for the same diagnoses, same patient demographics, same insurance coverage. This variation is not explained by clinical need. It is explained by surgeon and market factors. Before committing to a spinal fusion, you deserve an independent expert assessment of whether the surgery is appropriate for your specific condition and whether you have genuinely exhausted appropriate non-operative treatments.

7x

Geographic variation in lumbar fusion rates across the US — same conditions, radically different surgery rates

40%

Of patients report persistent or worsening pain after lumbar fusion — a phenomenon known as Failed Back Surgery Syndrome

2.5%

Annual rate of adjacent segment disease after lumbar fusion — compounding over years into a significant long-term burden

The most important question before any spine surgery: Has the specific source of your pain been clearly identified on imaging, and have the findings been correlated with your symptoms? Many patients undergo fusion based on imaging findings that are present in completely asymptomatic people. MRI findings alone are rarely sufficient justification for spinal fusion.

After surgery — complications & chronic problems

When spine surgery
leaves you worse — or no better.

The conditions below are among the most important reasons patients seek expert spine second opinions after surgery. Each represents a specific, evaluable, and often treatable problem — but only if properly identified.

Most common concern

Chronic Pain & Failed Back Surgery Syndrome

Failed Back Surgery Syndrome (FBSS) is not a single diagnosis — it is a term describing persistent or recurrent pain after technically successful spine surgery. It affects a substantial portion of lumbar fusion patients and represents one of the most challenging problems in spine care.

Common underlying causes our specialists evaluate:

  • Wrong diagnosis — the actual pain generator was not the level operated on
  • Pseudarthrosis — the fusion never solidified (see below)
  • Adjacent segment disease — degeneration above or below the fusion
  • Epidural fibrosis — scar tissue around nerve roots
  • Neuropathic pain — persistent nerve sensitization even after structural correction
  • Psychological and psychosocial factors that were not addressed before surgery
  • New pathology at an adjacent or remote level

The most important thing to understand: more surgery is not always the answer for FBSS — and in many cases, additional surgery makes outcomes worse. An expert second opinion helps determine whether there is a correctable structural cause, whether non-operative management options have been exhausted, and what realistic expectations should be.

Recurrent disc problem

Reherniation After Discectomy

Recurrent disc herniation — reherniation at the same level as a previous discectomy — is one of the most common complications of lumbar disc surgery. It occurs in approximately 5-15% of patients and can happen within weeks or years of the original procedure.

What distinguishes reherniation from other post-operative pain:

  • Symptoms are typically similar to the original episode — leg-dominant pain in a dermatomal pattern
  • Onset is often acute, sometimes associated with a specific activity or lifting event
  • MRI is required to confirm reherniation versus scar tissue (which can be difficult to distinguish)
  • Contrast-enhanced MRI (gadolinium) helps differentiate recurrent disc from epidural fibrosis

Treatment decision:

Not all reherniations require repeat surgery. Many resolve with time and appropriate conservative management. Surgery becomes appropriate when there is progressive neurological deficit, bowel or bladder involvement, or severe pain that has not responded to adequate non-operative care. Whether to perform a repeat discectomy or convert to fusion is a nuanced decision requiring specialist input.

Patients who have had two or more discectomies at the same level should receive a careful assessment of whether fusion is now appropriate — repeat discectomy carries increasing risk of instability with each procedure.

Instrumentation failure

Hardware Problems & Instrumentation Failure

Spinal hardware — pedicle screws, rods, cages, and interbody devices — can fail in multiple ways. These failures are frequently missed on routine imaging because they may be subtle or require specific views and modalities to detect.

Hardware complications our specialists assess:

  • Screw loosening: One of the most common hardware issues, often visible as a "halo" of lucency around the screw on CT. Can cause pain, loss of correction, and pseudarthrosis
  • Rod fracture: Usually indicates pseudarthrosis — the rod breaks because the fusion mass never formed to share the mechanical load. New-onset back pain after initial improvement is a classic presentation
  • Cage subsidence or migration: Interbody cages can sink into the adjacent vertebral endplates or shift position, causing loss of disc height, foraminal stenosis, and nerve compression
  • Prominent hardware: Screws or rods that are positioned close to the skin or irritating adjacent structures
  • Proximal junctional kyphosis (PJK): A severe complication of long spinal constructs where the junction between the instrumented and non-instrumented spine develops a sharp kyphotic angle — can cause neurological compromise

Identifying hardware problems requires specific imaging — often CT scan rather than MRI, and sometimes dynamic (flexion-extension) radiographs. If you have new or worsening pain after spine surgery and your physician has not ordered CT imaging, this is an important gap to address.

Long-term complication

Adjacent Segment Disease

Adjacent segment disease (ASD) is the accelerated degeneration of spinal levels immediately above or below a fusion, caused by the redistribution of mechanical forces onto those segments. It is one of the most important long-term consequences of lumbar fusion and a major contributor to the "cascade" of reoperation that some fusion patients experience.

Key facts about ASD:

  • Radiographic ASD occurs in approximately 25-45% of fusion patients over 10 years
  • Symptomatic ASD requiring treatment occurs at approximately 2-3% per year
  • Risk increases with longer fusion constructs, multilevel fusions, and fusions that end at the lumbosacral junction
  • Symptoms typically develop gradually — increasing back pain, new leg symptoms, or neurogenic claudication (difficulty walking due to spinal stenosis at the adjacent level)

The critical distinction: Radiographic ASD without corresponding symptoms does not require treatment. Many patients are told they "have ASD" and offered extension of their fusion when their symptoms do not actually correlate with the imaging findings. An expert second opinion ensures that any proposed surgical extension of your fusion is truly warranted by your clinical picture — not by imaging findings alone.

Failed fusion

Pseudarthrosis — When Fusion Fails

Pseudarthrosis is the failure of a spinal fusion to achieve solid bone healing. It is more common than most patients realize — occurring in 5-15% of single-level fusions and significantly higher rates in multilevel procedures, smokers, and patients with osteoporosis or metabolic bone disease.

Why pseudarthrosis is often missed:

  • Standard MRI is unreliable for detecting pseudarthrosis — it cannot adequately assess bone fusion across hardware
  • Routine X-rays may appear normal until hardware fails (rod fracture is often the first sign)
  • CT scan is the gold standard for evaluating fusion mass integrity — but it is not routinely ordered
  • Patients are often told "your hardware looks fine" without CT evaluation of the actual fusion

Symptoms: Persistent or recurrent back pain that is worse with activity and relieved by rest, particularly following an initial period of improvement post-operatively. Occasionally asymptomatic but associated with hardware failure over time.

Treatment: Revision surgery with bone grafting, usually requiring extension of the fusion construct and biological augmentation. The decision to revise requires careful patient selection — surgery is beneficial only when pseudarthrosis is clearly symptomatic and other causes of pain have been excluded.

Spinal deformity

Flatback Deformity & Sagittal Imbalance

The lumbar spine normally has a lordotic (inward) curve that places your center of gravity over your hips and allows upright standing with minimal muscle effort. When this curve is lost — either through disease or as a complication of spinal instrumentation — the result is called flatback deformity or sagittal imbalance.

How it develops after spine surgery:

  • Older instrumentation systems that fused the spine in a neutral or kyphotic position
  • Long fusions that did not restore adequate lumbar lordosis
  • Progressive collapse or deformity above or below a fusion mass
  • Proximal junctional kyphosis (PJK) in long spinal constructs

Symptoms: Inability to stand upright without flexing the knees or hips, progressive fatigue with standing and walking, back pain that worsens throughout the day, and a characteristic "flat" appearance to the lower back. Many patients compensate for years before symptoms become debilitating.

Why expert evaluation matters: Correcting sagittal imbalance is among the most complex operations in spine surgery — osteotomies to realign the spine carry significant risk and require surgeons with subspecialty expertise in spinal deformity. Before proceeding, a thorough expert review of whether surgery is appropriate and what type is needed is essential.

Who reviews your case

Spine specialists with
15+ years in active practice.

Every spine case reviewed through ExpertMD is evaluated by a fellowship-trained spinal surgery specialist who has been in active clinical practice for 15 or more years. These are academic surgeons who have trained the next generation of spine specialists, who have published original research on surgical indication criteria and outcomes, and whose opinions other spine surgeons seek on complex cases. Critically, our reviewers assess not only whether a proposed intervention is technically feasible — but whether it is genuinely appropriate given your specific clinical situation.

On spine surgery appropriateness: Our reviewers are among the specialists most frequently cited in the literature on when spine surgery is — and is not — appropriate. Knowing when to recommend against surgery is as important as knowing when to recommend it.

Common questions — spine
Why am I still in pain after my spinal fusion?+
How do I know if my spine hardware has failed?+
Is my disc herniation going to come back after surgery?+
Do I really need spinal fusion for my back pain?+
What is adjacent segment disease and do I need surgery for it?+
Can I use ExpertMD from any state or internationally?+

Before you agree to fusion —
talk to someone who has done thousands.

Fellowship-trained spine specialists review your imaging, surgical history, and records. Written report in 4 business days. Educational and informational — available anywhere in the world.