Sciatica: Why Treating the Pain Isn't Enough

By Dr. Andrew Biggs, DC | Principled Chiropractic | Royal Palm Beach, FL

Few things derail daily life quite like sciatica.

The searing, electric pain that shoots from the lower back through the buttock and down the leg. The numbness or tingling that makes your foot feel like it belongs to someone else. The sharp jolt that stops you mid-step, mid-reach, or mid-sleep. The inability to sit comfortably, drive without agony, or stand long enough to cook a meal.

If you have experienced sciatica, you know exactly what it feels like. If you have been through the standard medical treatment pathway, anti-inflammatory medications, muscle relaxants, physical therapy stretches, possibly epidural steroid injections, you may also know the frustrating experience of getting relief that does not last.

The pain quiets down. You return to your life. Then, weeks or months later, it comes back. Sometimes just as bad. Sometimes worse.

This is not a failure of your body to heal. It is a predictable consequence of treating a structural problem with symptom management. Understanding the difference between those two approaches may be the most important thing you can do for your long-term recovery from sciatica.

What Sciatica Actually Is

Sciatica is not a diagnosis in the traditional sense. It is a description, a set of symptoms that tells you which nerve is being affected, but not why.

The sciatic nerve is the longest and widest nerve in the human body. It originates from the nerve roots of the fourth and fifth lumbar vertebrae (L4, L5) and the first, second, and third sacral segments (S1, S2, S3). These roots converge to form a single nerve that travels through the deep muscles of the buttock, down the back of the thigh, and branches into the lower leg and foot.

When any of the nerve roots that contribute to the sciatic nerve are compressed, irritated, or inflamed, the result is the characteristic pain, numbness, tingling, and weakness that travels along the path of the nerve, sometimes to the knee, sometimes all the way to the foot.

Any condition structurally impacting or compressing the sciatic nerve may cause sciatica symptoms. The most common cause is a herniated or bulging lumbar intervertebral disc. Spondylolisthesis, a relative misalignment of one vertebra relative to another, may also result in sciatic symptoms. Additionally, lumbar or pelvic muscular spasms or inflammation may impinge a lumbar or sacral nerve root.

There is also a specific and frequently overlooked cause called piriformis syndrome, in which the piriformis muscle (a deep hip rotator that lies directly adjacent to the sciatic nerve) becomes tight, inflamed, or spasmatic and compresses the nerve from the outside rather than from the spine. Piriformis syndrome is often misdiagnosed and unrecognized.

The critical point is this: sciatica is always the result of something compressing, irritating, or inflaming the sciatic nerve or its contributing roots. It does not arise from nowhere. It is a signal, a downstream effect, of a structural problem that exists somewhere along the path from the lumbar spine through the pelvis to the buttock.

And that structural problem has a name.

The Structural Problem Behind the Pain

At Principled Chiropractic, we understand sciatica through the lens of NeuroStructural Shifts, meaningful deviations in the architecture of the lumbar spine, sacrum, or pelvis that create the mechanical environment in which sciatic nerve compression occurs.

Here is what that looks like in practice.

Disc Herniation and Lumbar NeuroStructural Shifts

The intervertebral discs of the lumbar spine, the shock-absorbing pads between the vertebrae, are designed to distribute load evenly across the vertebral segment. They perform this function beautifully when the vertebrae above and below them are properly aligned and the compressive forces moving through the spine are symmetrical.

When a NeuroStructural Shift is present in the lumbar spine, when one or more vertebrae have moved out of their normal position, the load distribution across the disc becomes asymmetrical. Pressure concentrates on one side or one portion of the disc rather than being spread evenly. Over time, this uneven loading stresses the outer fibrous wall of the disc, which can eventually bulge or herniate, pushing disc material into the space where the nerve roots travel.

Disc herniation provides direct pressure by disc material on the nerve root. Mechanical compression of a nerve alone is not necessarily painful, however, if that nerve is inflamed, it can produce severe pain with a small amount of mechanical compression. When both nerve compression and inflammation around the nerve root are present, there is more nerve injury and pain perception than after either event alone.

This is why sciatica can feel so dramatically disproportionate to what appears to be a minor structural change on an MRI. The nerve root's sensitivity, its state of inflammation and chemical irritation, determines how painful the compression is, as much as the degree of herniation itself.

And here is the critical implication: even if anti-inflammatory medication temporarily reduces the nerve root's sensitivity and quiets the pain, the disc herniation has not moved. The structural shift that caused the abnormal loading on the disc has not been corrected. The conditions that produced the herniation remain intact. The pain will return.

Spondylolisthesis

When one vertebra slips forward over the one below it, the resulting misalignment can narrow the space where nerve roots exit the spine and compress the sciatic nerve. This condition can be degenerative, from gradual joint breakdown, or structural, from a stress fracture in the vertebra, specifically a part of the bone called the pars interarticularis.

Spondylolisthesis is one of the clearest examples of a condition that produces sciatica through a purely structural mechanism. The nerve root is compressed because the architectural relationship between adjacent vertebrae has been disrupted. No medication changes that relationship. No stretching routine corrects it. The compression persists because the structure that is creating it persists, until the structural problem is directly addressed.

Sacroiliac Joint Dysfunction

The sacroiliac joints sit at the base of the spine where the sacrum connects to the pelvis. When these joints become misaligned or inflamed, they can irritate the L5 nerve root, which contributes to the sciatic nerve, producing pain that mimics classic sciatica. SI joint dysfunction is frequently overlooked as a source of sciatic-type pain.

This is a particularly important point, because many patients who have been told they have sciatica from a disc herniation actually have a significant sacroiliac component that has never been identified or treated. When the SI joint is the primary source of nerve irritation, spinal decompression, lumbar-focused physical therapy, or epidural injections aimed at the lumbar disc may provide little lasting relief, because the structural problem driving the symptoms is at the pelvis, not the disc.

A thorough structural examination that assesses the sacrum and sacroiliac joints, not just the lumbar vertebrae, is essential for identifying all contributors to sciatic nerve irritation.

Spinal Stenosis

Spinal stenosis is a narrowing of the spinal canal or neural foramen (passages where the nerves leave the spine) that places pressure on the nerves running through it, including the sciatic nerve roots. It is more common in people over 50 and often develops gradually due to age-related changes in the spine, including bone spurs, thickened ligaments, and degenerative disc changes.

Spinal stenosis is often presented to patients as an inevitable consequence of aging, something to be managed but not corrected. While advanced stenosis may require surgical evaluation, many cases involve a significant mechanical component in which NeuroStructural Shifts have accelerated the degenerative process by creating years of abnormal loading on the spinal segments. Addressing those shifts, even in the context of existing stenosis, can meaningfully reduce the compression on the nerve roots and the symptoms it produces.

Piriformis Syndrome

The piriformis muscle is a deep hip rotator located directly behind the sciatic nerve as it exits the pelvis. When the piriformis is tight, inflamed, or spasmatic, whether from overuse, injury, or structural asymmetry in the pelvis, it can compress the sciatic nerve from the outside, producing symptoms indistinguishable from disc-related sciatica.

The pelvic imbalance and sacral NeuroStructural Shifts that we commonly identify in patients with sciatica frequently contribute to piriformis dysfunction. When the pelvis is asymmetrical, the piriformis on one side is placed under disproportionate tension, not because the muscle itself is inherently problematic, but because the structural environment it is operating in is forcing it into a chronically shortened, overloaded position.

Treating piriformis syndrome purely with stretching addresses the muscular symptom without correcting the structural cause. The piriformis will continue to be irritated as long as the pelvic imbalance driving its dysfunction remains.

Why the Pain Keeps Coming Back

Understanding the structural causes of sciatica makes the reason for its recurrence obvious: when you treat the pain without correcting the structural problem producing it, the structural problem continues to produce it, and it will likely worsen over time.

This is the fundamental limitation of the reactive approach to sciatica that most patients experience. Anti-inflammatory medications reduce nerve root sensitivity temporarily. Muscle relaxants reduce the protective muscle spasm that accompanies nerve irritation temporarily. Epidural steroid injections bathe the inflamed nerve root in corticosteroids temporarily.

None of these interventions change the position of the herniated disc material that is pressing on the nerve. None of them restore the lumbar vertebra that has shifted out of alignment and is causing abnormal disc loading. None of them correct the sacroiliac dysfunction that is irritating the L5 nerve root. None of them address the pelvic imbalance that is driving the piriformis into chronic tension.

The structural problem persists. The pain returns.

Spinal nerve root compression does not cause sciatica in all circumstances as more than 50% of asymptomatic people who have disc prolapses compressing the nerve roots have no pain. This fact illuminates something important: the presence of disc herniation does not automatically mean pain. What determines whether a nerve root is symptomatic is the degree of inflammation and neurochemical sensitization present around it, a state that is directly influenced by the mechanical environment the nerve root is living in. When that mechanical environment is corrected through structural care, the conditions for chronic nerve root inflammation are reduced and the pain has the opportunity to resolve not just temporarily, but durably.

The Pattern We See Most Often

In our practice, patients with sciatica typically arrive having been through some version of the same journey.

They experienced an acute episode. perhaps triggered by an awkward movement, a heavy lift, or seemingly nothing at all. They saw their primary care physician, received anti-inflammatory medication and a referral to physical therapy. The pain improved. They completed the physical therapy program, were discharged, and felt reasonably well for a period.

Then it came back.

Sometimes the second episode was similar to the first. Sometimes it was worse. Some patients have been through this cycle three, four, or five times before finding their way to our office. Some have had one or more epidural injections with temporary benefit. Some have been told that surgery is the next option on the table and are looking for an alternative.

In virtually every one of these cases, when we perform a thorough structural examination, we find the same thing: a lumbar or sacral NeuroStructural Shift, often one that has been present for years, or even decades, that has never been identified or addressed (often dismissed as an incidental finding on their prior imaging). The acute episodes of pain are flare-ups of a chronic structural problem, not new injuries.

The physical therapy helped the muscles and the nerve root inflammation. The medications quieted the pain response. Unfortunately, the structural shift that was producing the abnormal disc loading, the nerve root compression, or the SI joint dysfunction was never corrected. The problem kept returning, because the cause had never been removed.

The NeuroStructural Approach to Sciatica

At Principled Chiropractic, our approach to sciatica begins with a question that most other providers have not asked: what structural shift is creating the environment in which this nerve is being compressed or irritated?

We are not asking where it hurts. We are asking what is causing it to hurt.

Comprehensive Structural Examination

Every patient presenting with sciatica at our office receives a thorough structural examination that assesses the entire lumbar spine, sacrum, sacroiliac joints, and pelvis, not just the segment that appears most symptomatic. We use objective measurements to identify NeuroStructural Shifts, assess the degree of structural deviation present, and determine which specific structural components are contributing to the patient's nerve compression.

We also take a detailed history, including past injuries, previous episodes of back or leg pain, occupation, lifestyle, and any prior treatment received. The history of a patient's sciatica often reveals a long-standing structural predisposition that preceded the current episode by years and understanding that full picture is essential for developing an effective corrective plan.

Specific Structural Correction

The adjustments we deliver for patients with sciatica are precise and specific, targeted at the exact location and direction of the NeuroStructural Shift that is contributing to nerve compression, not simply at wherever the pain is most intense. There is a meaningful difference between an adjustment aimed at reducing pain in the moment and an adjustment aimed at correcting the structural position of a vertebra or sacrum, and that difference determines whether the benefit is temporary or lasting.

For patients with significant disc involvement, our approach is adapted accordingly, using specific techniques designed to reduce mechanical stress on the disc and promote its gradual recovery, rather than techniques that could increase intradiscal pressure or exacerbate an existing herniation.

Addressing the Full Structural Picture

Sciatica is rarely the result of a single, isolated structural problem. It is typically the expression of a pattern of structural dysfunction that has developed over time, involving the lumbar spine, the sacrum, the sacroiliac joints, and the supporting musculature in combination.

Our approach addresses the full pattern. Correcting the lumbar shift without addressing the sacral dysfunction or treating the piriformis without correcting the pelvic imbalance driving its tension, produces incomplete results. A comprehensive structural assessment, and a corrective plan that addresses all identified contributors, is what distinguishes lasting resolution from temporary relief.

What Patients Can Expect

We want to be honest about what structural correction for sciatica involves, because the marketing of quick fixes in this area has left many patients with unrealistic expectations in both directions.

For patients with long-standing sciatica and significant structural dysfunction, meaningful improvement requires time. The structural shifts that are compressing the sciatic nerve have often been developing for years. Correcting them requires a series of specific adjustments over weeks or months, allowing the spine to gradually restore its proper position and the nerve root to recover as the mechanical irritation is progressively reduced.

For patients with more recent or less severe structural involvement, improvement can be faster. Many patients experience meaningful reduction in pain within the first few visits, as the acute nerve root inflammation begins to settle in response to reduced structural compression.

The pattern of improvement is also worth understanding. With structural correction, improvement tends to be progressive, each visit building on the last, with the good periods between flare-ups getting longer and the flare-ups themselves becoming less intense. This is the difference between a treatment that temporarily reduces symptoms and a process that is genuinely correcting the underlying structural cause.

When to Seek Evaluation

We recommend evaluation at Principled Chiropractic for anyone experiencing:

• Pain radiating from the lower back or buttock into the leg, whether constant or intermittent

• Numbness, tingling, or weakness in the leg or foot

• Lower back pain that has recurred two or more times (don't write this off as normal aging, it's not)

• Sciatica that has not fully resolved with previous treatment

• Sciatic symptoms that return after a period of relief

• Leg pain that began during pregnancy or in the postpartum period

• Any sciatic symptoms combined with difficulty with bowel or bladder function, which warrants urgent medical evaluation

We also want to be clear about red flags that require immediate medical attention rather than chiropractic evaluation: sudden onset of bowel or bladder dysfunction accompanying back and leg pain, saddle area numbness, or progressive lower extremity weakness are signs of cauda equina syndrome, a neurological emergency that requires prompt surgical evaluation.

For the vast majority of patients with sciatica, these red flags are not present, and the path to lasting resolution runs through structural correction, not surgery.

The Relief You Are Looking For Is Structural

The pain of sciatica is real, and it deserves to be taken seriously. But pain is a signal not a disease. It is telling you that a nerve is being mechanically stressed in a way that your body cannot ignore. Quieting that signal without addressing the structural source of the stress is not a solution. It is a postponement.

The relief you are looking for, the kind that lasts, that doesn't require you to keep returning for the same treatment of the same problem, comes from correcting the structural source of the nerve compression. From restoring the lumbar vertebra to its proper position. From balancing the sacrum and sacroiliac joints. From addressing the pelvic dysfunction that is forcing the piriformis into chronic tension. From removing the structural interference that has been creating the conditions for this nerve to hurt.

That is the work we do at Principled Chiropractic. And it is why so many patients who have been through the cycle of temporary relief finally find something that holds.

If you are ready to address the cause rather than simply the symptom, we invite you to schedule a complimentary consultation. Come in, share your history, and let us take an honest look at what is structurally driving your sciatica.