Sciatica → Your back is not the problem this time

Your MRI came back clean. The radiologist said your discs look fine. But the burning line down the back of your leg is real, and you can feel it every time you sit too long at your desk.

The MRI was looking in the wrong place.

What is actually happening

Sciatica is a symptom, not a diagnosis. It describes the sensation of pain, burning, tingling, or weakness that runs down the path of the sciatic nerve, from the low back through the hip, down the back of the thigh, and often all the way into the foot. Most people assume sciatica means a spinal problem, and most of the time it does. But not always.

The sciatic nerve is the longest nerve in the body. After it exits the spine, it travels through the deep glute region and passes directly under, or in some people directly through, a small muscle called the piriformis. The piriformis is one of those quiet muscles you never think about until it betrays you. It rotates your hip outward. It engages every time you walk, run, climb stairs, or get out of a car.

When the piriformis tightens up from too much sitting, an old injury, weak glutes, or compensation patterns from somewhere else in the body, it clamps down on the sciatic nerve running through it. The result is classic sciatic pain, with no spinal involvement whatsoever. The MRI is clean because the spine is fine. The pain is real because the nerve is being squeezed two feet below.

This is called piriformis syndrome, and it gets missed constantly.

Common signs of a pinched nerve, not a joint problem

Pain that is worse after long sitting, especially driving

A deep ache in one side of the glute that feels like it is "in the bone"

Sciatic-pattern pain with a normal spine MRI

Pain that improves when you lie down and worsens when you sit

Tenderness when you press into the deep glute, not the low back

A history of weak glutes, hip injury, or one leg longer than the other

Did You Know

In about 20 percent of the population, the sciatic nerve actually passes directly through the piriformis muscle rather than under it. People with this anatomical variation are especially prone to piriformis syndrome. They can have textbook sciatica with a perfectly clean spine, and most doctors will keep scanning the back looking for an answer that is sitting in the hip.

What you can do this week

Stand up every 30 minutes. Prolonged sitting is the single biggest piriformis aggravator. Set a timer.

Try the figure-four stretch. Lie on your back, cross one ankle over the opposite knee, and gently pull the bottom knee toward your chest. Hold for 30 seconds per side. This opens the piriformis directly.

Stop sitting on your wallet. A wallet in the back pocket lifts one side of your pelvis when you sit and chronically irritates the piriformis. Front pocket only.

Wake up your glutes. Glute bridges, ten reps, three times a day. Weak glutes force the piriformis to take over hip stabilization, which is exactly when it tightens up.

How we approach this at HealthSource

The first step is identifying whether your sciatica is coming from the spine, the piriformis, or both. We test for each specifically so we are treating the actual source. For piriformis cases, manual soft tissue release into the deep glute often produces immediate relief patients have been chasing for months. Chiropractic adjustments restore proper sacroiliac and hip motion, which is what allows the piriformis to fully release. Class IV Laser Therapy reduces the chronic inflammation in the irritated nerve and surrounding tissue. Progressive Rehab rebuilds the glute strength that prevents the piriformis from having to compensate, which is the long-term fix that keeps the pain from coming back.

Patients with piriformis syndrome are often the most relieved patients we see, because they finally have an explanation for what their imaging could not show them.

Who do you know who has been chasing sciatica for months with a clean back MRI and no answers? Send this to them. The answer might be sitting in their hip.

P.S. Piriformis syndrome responds remarkably well to early intervention and very poorly to "wait and see." If this email describes your leg pain, do not wait another month.

HealthSource Chiropractic of Harper's Preserve

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