5 Common Causes of Chronic Back Pain That Often Get Overlooked
By Jacqueline Weisbein, D.O.
Double Board-Certified in Physical Medicine & Rehabilitation and Pain Medicine
Quick Insights:
Chronic back pain affects millions of Americans, but many cases stem from specific structural causes that go undiagnosed for years. Conditions like vertebrogenic pain, sacroiliac joint dysfunction, facet arthritis, spinal instability, and failed back surgery syndrome often mimic each other and are frequently missed in standard evaluations. Identifying the precise source of pain is the first step toward targeted, effective treatment that addresses the root cause rather than just masking symptoms.
Key Takeaways
- Many chronic back pain cases have identifiable structural causes that standard imaging and exams may not reveal without targeted diagnostic techniques
- Sacroiliac joint dysfunction and facet joint arthritis together account for a significant percentage of chronic low back pain but are often overlooked in initial evaluations
- Vertebrogenic pain originates from damaged endplates within the vertebral body itself, a source that wasn't widely recognized until recent years
- Accurate diagnosis through specialized testing (including diagnostic nerve blocks and advanced imaging) enables interventional treatments that target the actual pain generator
Why It Matters:
For active adults managing demanding careers, maintaining vineyards, or enjoying outdoor recreation in wine country, chronic back pain that won't resolve can feel like a life sentence. When months or years of conservative care haven't brought relief, it's often because the true pain generator hasn't been identified. Understanding these five overlooked causes empowers patients to seek the specialized diagnostic evaluation needed to move from managing symptoms to addressing the actual source, so they can return to the activities and lifestyle that matter most.
What Causes Chronic Back Pain That Doesn't Respond to Standard Treatment?
If you've dealt with persistent back pain for months or years despite physical therapy, medications, and lifestyle changes, I understand how frustrating that can be. You're not alone, and more importantly, you're not imagining it.
While muscle strains and disc herniations are the usual suspects when it comes to back pain, research shows that a significant portion of chronic cases actually stem from less-recognized structural sources. Pain Physician 2020 found that facet joint pain alone accounts for 34.1% of chronic low back pain cases, yet it's frequently overlooked in initial evaluations.
As Dr. Jackie Weisbein, Double Board-Certified in Physical Medicine & Rehabilitation and Pain Medicine, I've spent over a decade helping patients identify the actual source of their pain. That diagnostic precision (using specialized testing like diagnostic nerve blocks and advanced imaging) is what enables interventional treatments that target the specific pain generator rather than continuing with trial-and-error approaches.
In this article, I'll walk you through five structural causes of chronic back pain that often go unrecognized: vertebrogenic pain, sacroiliac joint dysfunction, facet arthritis, spinal instability, and failed back surgery syndrome. Understanding these conditions is the first step toward getting the answers you deserve.
Important Safety Information
Before we dive in, it's important to note that chronic back pain can occasionally signal serious underlying conditions requiring urgent medical evaluation, including infection, spinal fracture, cancer, or cauda equina syndrome (severe nerve compression affecting bowel and bladder function).
Seek immediate medical attention if you experience:
- New bowel or bladder dysfunction
- Progressive leg weakness
- Unexplained weight loss
- Fever with back pain
- Pain following significant trauma
The diagnostic procedures I'll discuss (such as diagnostic nerve blocks) are performed under sterile conditions by trained interventional pain specialists and carry specific risks that will be reviewed during your consultation.
Understanding Why Chronic Back Pain Gets Misdiagnosed
Here's something that surprises many of my patients: chronic back pain is often treated as a single condition when it actually represents multiple distinct pain generators, each requiring a different approach.
Standard X-rays and MRIs are valuable tools: they show us structural changes in the spine. But here's the catch: they don't always identify which structure is actually causing your pain. I've evaluated countless patients who have disc bulges or arthritis visible on imaging but no symptoms, while others experience significant pain from sources that look completely normal on standard films.
This is where the concept of "pain generators" comes in. NIAMS explains that multiple factors can contribute to chronic back pain, making it a complex diagnostic challenge. In interventional pain medicine, we use diagnostic procedures (like selective nerve blocks) to identify the precise anatomical source of your pain rather than guessing based on imaging alone.
Think of it this way: an MRI might show three potential problems in your lower back, but which one is causing your pain? That's what we need to figure out. Stanford Health Care emphasizes that many low back pain cases have multifactorial etiologies, and precise diagnosis is what guides effective care.
This diagnostic precision is what enables targeted treatment. Instead of trying one approach after another and hoping something works, we identify the specific structure causing your pain and address it directly.
Five Structural Causes of Chronic Back Pain That Often Go Unrecognized
Let me walk you through five structural causes that I frequently identify in patients who've been told there's nothing more that can be done for their pain.
Vertebrogenic Pain: When the Problem Is Inside the Vertebra Itself
Vertebrogenic pain is one of the newer recognized sources of chronic low back pain, which is why many patients have never heard of it. This type of pain originates from damaged vertebral endplates, the thin layers of cartilage that cap the top and bottom of each vertebral body.
When these endplates are damaged by degeneration, inflammation, or microfractures, they can cause deep, midline low back pain that's often mistaken for disc pain. The key difference? Vertebrogenic pain typically presents as a deep, aching discomfort right in the center of your lower back, often without significant leg symptoms.
Mayo Clinic outlines various structural causes of back pain, providing context for understanding how vertebrogenic pain fits into the broader diagnostic picture.
This source wasn't widely recognized until recent years, which means many physicians may not evaluate for it. Diagnosis requires specific MRI sequences that highlight inflammation in the vertebral endplates, and treatment may include vertebrogenic pain treatment including basivertebral nerve ablation, a targeted procedure that addresses the nerve supply to the damaged endplates.
Sacroiliac Joint Dysfunction: The Overlooked Pelvic Connection
The sacroiliac joints are large, strong joints connecting your sacrum (the triangular bone at the base of your spine) to your pelvis. These joints are designed to absorb shock and transfer load between your spine and legs, but when they become dysfunctional, they can cause significant lower back and buttock pain.
SI joint dysfunction can result from injury, arthritis, pregnancy, leg length discrepancy, or altered gait mechanics. What makes it tricky to diagnose is that the pain often radiates into the groin or posterior thigh, mimicking sciatica or hip problems. Many patients have been evaluated for hip arthritis or disc herniation when the real culprit is the SI joint.
Here's why it gets missed: SI joint dysfunction doesn't show up clearly on standard imaging, and clinical exam alone has limited specificity. North American Spine Society has developed systematic protocols to improve diagnostic accuracy for SI joint pain, emphasizing the importance of provocative physical exam maneuvers combined with diagnostic injections for confirmation.
Cleveland Clinic explains that SI joint dysfunction is frequently underdiagnosed as a contributor to chronic low back pain, highlighting the need for targeted evaluation approaches.
In my practice, I use specific physical exam tests (like the FABER test, Gaenslen's test, and thigh thrust test) to identify likely SI joint pain, followed by diagnostic injections to confirm the diagnosis before recommending treatment like radiofrequency ablation or SI joint fusion.
Facet Joint Arthritis: The Spine's Hidden Arthritic Pain Generator
Facet joints are the small paired joints at each spinal segment that guide and limit motion. Like any joint in your body, they can develop arthritis, and when they do, they cause localized back pain that typically worsens with extension (leaning backward) and rotation.
Here's what makes facet arthritis so commonly overlooked: facet joint arthritis visible on imaging doesn't always correlate with pain. I've seen patients with severe facet arthritis on MRI who have no symptoms, and others with mild changes who experience significant pain. This disconnect is why diagnostic testing is essential.
Research provides important insights here. Pain Physician 2020 found that in chronic low back pain, facet joint pain had a prevalence of 34.1%, meaning roughly one in three patients with chronic low back pain have facet joints as their primary pain generator. But here's the critical finding: when single diagnostic blocks were used, the false-positive rate was nearly 50%. This means that half the time, a single injection might suggest facet pain when it's actually coming from another source.
That's why I use controlled comparative blocks (testing with two different anesthetic durations) to confirm the diagnosis before proceeding with treatments like radiofrequency ablation. Research shows this approach significantly improves diagnostic accuracy and ensures we're targeting the right structure.
Additionally, Pain Medicine 2022 reviewed ultrasound-guided facet joint interventions and found generally favorable safety and comparable accuracy to fluoroscopy in many cases. However, the review also noted heterogeneity in technique and mixed evidence on long-term clinical efficacy, highlighting that while ultrasound guidance is a valid tool, outcomes can vary based on provider experience and patient selection.
Two Additional Causes That Complicate Chronic Back Pain
Beyond the three structural causes I just discussed, two additional conditions frequently complicate the clinical picture: spinal instability and failed back surgery syndrome.
Spinal Instability: When the Spine Can't Support Itself
Spinal instability occurs when the ligaments, discs, or facet joints no longer adequately stabilize a spinal segment, allowing abnormal motion that causes pain. Many patients describe it as a feeling that their back might "give out" during certain movements.
Instability can result from degeneration, prior injury, or sometimes as a consequence of previous spine surgery. NINDS describes the broad landscape of chronic pain etiologies, including structural changes that contribute to ongoing back pain.
Standard static X-rays and MRIs may look relatively normal because instability is a dynamic problem: it shows up with movement. That's why we sometimes need dynamic imaging like flexion-extension X-rays to visualize the excessive motion between vertebrae.
Treatment for instability often focuses on strengthening the muscles that support the spine rather than rushing to fusion surgery. In select cases, minimally invasive stabilization procedures can help without the recovery time of traditional surgery.
Failed Back Surgery Syndrome: When Surgery Doesn't Solve the Problem
Failed back surgery syndrome (FBSS) describes persistent or recurrent pain following anatomically successful spine surgery. The surgery may have corrected the structural problem (like removing a herniated disc or decompressing stenosis), but the pain persists or returns.
This happens more often than people realize, and it's not a failure of the patient or necessarily of the surgeon. FBSS can result from scar tissue formation (epidural fibrosis), adjacent segment degeneration (wear and tear at the levels above or below the fusion), nerve injury during surgery, or, importantly, an incorrect initial diagnosis where surgery addressed a structure that wasn't the primary pain generator.
Research emphasizes that many cases have multifactorial etiologies, including degeneration and nerve compression that can contribute to post-surgical pain. Understanding this complexity helps us develop appropriate treatment strategies.
The key message here: if you've had back surgery that didn't help, there are still options. Interventional pain management approaches (including spinal cord stimulation, targeted injections for scar tissue, and regenerative therapies) offer significant benefit for many FBSS patients. The focus shifts from further surgery to optimizing function and reducing pain through neuromodulation and minimally invasive techniques.
Why Accurate Diagnosis Matters for Active Adults in Wine Country
In Napa Valley, I work with vineyard managers, winery owners, healthcare professionals, hospitality workers, and active retirees who refuse to let back pain define their lives. These are people who hike the trails around Yountville, tend vines in St. Helena, golf on weekends, and travel to explore new wine regions.
When back pain persists despite months of conservative care, it's not a personal failing or something you just have to endure. Multiple factors contribute to chronic back pain, and when the actual source hasn't been identified, even the best conservative treatments won't bring lasting relief.
This is where specialized interventional pain evaluation makes the difference. Using diagnostic procedures to pinpoint which of these structures is responsible (the facet joints, SI joints, vertebral endplates, or multiple sources) enables targeted treatment that addresses the source rather than continuing with general approaches.
For active adults in Napa, this diagnostic precision means getting back to the work and recreation that matter. It's the difference between managing symptoms indefinitely and actually resolving the underlying problem so you can return to physically demanding vineyard work, enjoy long hikes without constant breaks, or simply get through your day without that nagging ache limiting what you can do.
When Should You Consider Specialized Evaluation for Chronic Back Pain?
Let's have a compassionate conversation about when it's time to seek interventional pain evaluation. Here are the key indicators:
1. Duration: Your back pain has persisted beyond 3-6 months despite physical therapy, medication, and activity modification
2. Localized pain pattern: Your pain is concentrated in a specific area (lower back, buttock, or belt-line level) rather than generalized achiness throughout your back
3. Movement-specific pain: Your pain follows predictable patterns, worsening with certain movements like bending backward, standing from sitting, or walking, which suggests a specific structural source
4. Functional impact: The pain is affecting your ability to work, exercise, or participate in activities you value, not just causing discomfort but actually limiting what you can do
5. Temporary relief plateau: Previous treatments helped temporarily but didn't address the underlying problem, and you're back to square one
I want you to know that seeking specialized care doesn't mean you've failed at conservative management or that you're "giving up" on less invasive options. Interventional pain medicine exists precisely for cases where conservative care hasn't provided adequate relief. The diagnostic procedures we use can often identify sources that standard evaluations miss.
And here's something important: seeking this evaluation doesn't mean committing to injections or procedures. It means getting answers. Understanding what's actually causing your pain gives you power: the power to make informed decisions about your care path forward.
What to Expect During Your Evaluation
When you come to my practice at Napa Valley Orthopaedic Medical Group, here's what a typical initial consultation looks like.
Before Your Visit:
You'll complete intake paperwork including pain diagrams where you mark exactly where you feel pain, and functional questionnaires that help me understand how pain affects your daily activities. Bring any prior imaging (MRI, CT, X-rays) on a disc or have the facility send them to our office beforehand.
The History and Physical Exam:
I conduct a detailed history, asking about your pain's location, quality (sharp, dull, aching, burning), timing (constant vs. intermittent), what makes it better or worse, and what treatments you've already tried. I also ask how the pain affects your daily activities. This functional assessment often matters more than pain scores alone.
The physical examination includes range of motion testing, palpation of specific structures to identify tender areas, and provocative maneuvers designed to reproduce your pain and help identify the likely pain generators. For example, facet loading tests can suggest facet arthritis, while SI joint provocation tests (like the thigh thrust or FABER test) can point to SI joint dysfunction.
Imaging Review and Additional Studies:
I review any prior imaging you've had. If you haven't had recent imaging, or if I need specific sequences (like MRI with special views for vertebrogenic pain evaluation), I'll order additional studies. Sometimes dynamic X-rays (taken while bending forward and backward) help identify instability that doesn't show up on static images.
Discussion and Diagnostic Plan:
At the end of the visit, we discuss likely diagnoses based on your history, exam, and imaging. I explain the diagnostic plan, which may include a trial of targeted diagnostic injections performed under fluoroscopy (X-ray guidance) or ultrasound guidance to confirm the pain source before recommending definitive treatment.
The goal is always diagnostic clarity first, then a treatment plan tailored to the confirmed source. A typical initial visit is 45-60 minutes. I don't rush. Understanding your specific situation takes time.
| Aspect | Interventional Diagnostic Approach | Conservative Management Approach |
|---|---|---|
| Diagnostic method | Uses targeted diagnostic blocks and advanced imaging to identify specific pain generator | Relies on clinical exam, standard imaging, and symptom patterns to guide treatment |
| Treatment selection | Tailored to confirmed anatomical source (e.g., radiofrequency ablation for confirmed facet pain, SI joint fusion for confirmed SI dysfunction) | Applies general treatments (physical therapy, medication, activity modification) regardless of specific source |
| Timeline to clarity | Diagnostic procedures provide confirmation within weeks, enabling source-specific treatment | May involve months of trial-and-error with different therapies to see what provides relief |
| Appropriate for | Chronic pain persisting beyond 3-6 months of conservative care; cases where specific structural source is suspected | Initial treatment approach for most back pain; ongoing management when conservative care provides adequate relief |
| Role in treatment plan | Identifies pain generator to guide targeted intervention; often follows conservative care when initial treatment insufficient | First-line approach for most back pain; may be combined with interventional treatment for comprehensive care |
Hear From Our Community
When I evaluate patients who've been told "nothing can be done" for their chronic back pain, I understand how discouraging that feels. Gene's experience reflects why I became an interventional pain specialist.
"Have been in the medical system for years, doctor after doctor, she is the first to diagnose and treat my issues - absolutely amazing!"
- Gene
Excerpt from a publicly shared patient review. Individual experiences vary.
Gene's words capture exactly what I strive to provide every patient: accurate diagnosis after years of frustration. When you've seen multiple doctors and still don't have answers, it's not because the problem is impossible to diagnose. It's often because the specific pain generator hasn't been properly evaluated with targeted diagnostic testing.
Conclusion
Chronic back pain often has identifiable structural causes (vertebrogenic pain, sacroiliac joint dysfunction, facet arthritis, spinal instability, or failed back surgery syndrome) that standard evaluations may miss. When conservative care hasn't brought adequate relief, specialized interventional pain evaluation can pinpoint the actual source and enable targeted treatment.
As a Fellowship-Trained Interventional Pain Specialist, I've helped countless patients throughout Napa Valley identify what causes chronic back pain and develop treatment plans that address the root cause. In a region served by Providence Queen of the Valley Medical Center and home to world-class healthcare resources, residents experiencing persistent back pain have access to specialized diagnostic evaluation that goes beyond standard approaches.
Living with chronic pain isn't inevitable. Diagnostic clarity is the foundation for effective treatment, and that's what we provide. If you're experiencing persistent back pain despite conservative care, I invite you to schedule a consultation at our Napa office to explore sacroiliac joint dysfunction evaluation and treatment and other interventional options tailored to your specific pain generator.
We serve patients throughout Napa Valley and Wine Country, including Yountville, St. Helena, and surrounding communities.
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Schedule Your Consultation →This article is for educational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment options. Never disregard professional medical advice or delay in seeking it because of something you have read in this article.
Double Board-Certified in Physical Medicine & Rehabilitation and Pain Medicine · Fellowship-Trained Interventional Pain Specialist · Napa Valley Orthopaedic Medical Group
