
Spinal decompression therapy can take pressure off injured discs, calm sciatica, and help you avoid surgery for a bulging or herniated disc. In this post, Dr. Luke Stringer, DC explains how decompression works, what a treatment session feels like, and why pairing decompression with spinal alignment delivers longer-lasting relief than a traditional decompression table alone.
What spinal decompression therapy actually is
There are two kinds of spinal decompression, and the difference matters.
The better-known version uses a traction table (a Cox table is one example) to treat disc injuries. Picture a disc as a jelly doughnut: the outer collagen ring is the bread, the inner fluid is the jelly. Trauma, car accidents, or years of poor posture damage the outer ring, and the inner fluid shifts toward a nerve root. When that fluid contacts the nerve, you feel pain — often pain that travels down a leg or arm.
On a traditional decompression table, we lie you on your back, anchor the pelvis, and strap a harness around the torso. The table gently opens and closes the space in your low back (or neck) along a horizontal axis. That repeated opening creates a small vacuum inside the disc, which pulls the disc fluid back toward center and off the nerve. Pain centralizes and eases.
The catch: as soon as you stand up, gravity returns. If your spinal alignment is the reason the disc got loaded incorrectly in the first place, the fluid drifts right back toward the nerve.
Why we add spinal alignment to decompression
At Advanced Health we use Chiropractic BioPhysics methods — one of the most researched approaches in chiropractic. Through a detailed exam and X-rays we measure exactly how your spine is aligned and where it's loading the discs.
Here's a common example. Your lumbar curve should measure around 40 degrees. If your low back has flattened out, you're putting constant stress on the front of the disc. A standard decompression table will open the joint and you'll feel better — but stand up with a flat curve, and the stress returns.
Our traction is built to restore the curve, not just open the space. By holding your spine in the position it should be in for six to 12 minutes at a time, the ligaments warm and lengthen (called the creep effect), and the spine gradually stretches back toward normal alignment. Done two to three times a week over four to 12 weeks — your case dictates the exact protocol — you can objectively change the shape of your spine. That's the difference between short-term relief and long-term correction.
How decompression targets low back pain
Every case starts with figuring out what's actually driving the pain.
Say you were rear-ended at 60 mph. On X-ray, we might see the top bone of your lumbar spine sitting an inch forward of the bone below it, with your curve measuring 20 degrees instead of 40. That forward shift increases disc pressure, irritates nerve roots, and creates referred pain.
Once we know where the spine needs to go, we use our traction equipment to position you in proper alignment and apply gentle tension through the low back. Over repeated sessions the ligaments adapt and the spine holds the corrected position. You get out of pain in the short term and a structural change that holds up over time.
New research on neuromusculoskeletal pain keeps circling back to the same point: spinal alignment is what separates short-term relief from durable results.
Why decompression helps sciatica
The sciatic nerve is the thickest nerve in your body — about as thick as your thumb. It exits the low back, runs through the glutes, down the back of the leg, and into the foot. It can get impinged in many places, but the low back is almost always where we start, because that's where the nerve roots bundle together.
Both a low lumbar curve (too flat) and a high lumbar curve (too deep) load the lower lumbar nerve roots and create classic sciatic pain down the back of the leg. Decompression with alignment redistributes that load. Combined with soft tissue work, nerve-specific therapy, and physical therapy, results on sciatic-type pain are consistently strong.
A real disc herniation case
A recent patient came in after three orthopedic surgeons had recommended surgery. She had multiple lumbar disc herniations and spinal stenosis (narrowing around the spinal cord), couldn't function, and was taking medication just to sleep. She and her husband told us chiropractic was their last try before going under the knife.
Her X-rays showed a lumbar curve roughly 60 to 70% deeper than normal, dumping enormous stress on the bottom two or three joints of her low back. Over three months we worked through range of motion, spinal alignment, joint function, soft tissue therapy, and physical therapy. Her pain went from a constant 10/10 to essentially nothing in daily life — with occasional flare-ups only after long car rides or hours of standing, which she could clear quickly with the home protocol we gave her.
She avoided surgery and went from a 70% increased curve to about a 10% increase. She's back to babysitting her grandkids without pain.
Dealing with back pain, sciatica, or a disc injury? Get a new patient exam and X-rays at Advanced Health for $49 so we can see exactly what's driving your symptoms. Book online at /schedule or call (312) 987-4878.
The bigger picture: alignment changes how you age
We all degenerate over time — that's normal. When your spine is well-aligned, you've got healthy joint motion, balanced muscle strength, and the wear-and-tear of life happens slowly and evenly.
When the spine shifts out of alignment, the body compensates. Tissues overwork and break down. Joints shift. Nerves get impinged. Pain and dysfunction set in, and degeneration accelerates.
This is where the long-term research is interesting. In controlled studies comparing chiropractic, physical therapy, and other manual approaches, most groups feel better at the end of treatment. But at the one-, three-, and five-year follow-ups, the group that specifically had spinal alignment work — traction and decompression aimed at changing the shape of the spine — is the group that holds those gains. The groups that didn't get alignment-focused care tend to return to baseline pain levels, or worse.
That's the case for combining spinal decompression with alignment-based care. You're not just chasing a quick fix — you're objectively reshaping the spine so the correction holds.
Ready to find out if decompression is right for you?
If you're weighing your options for low back pain, sciatica, or a disc injury, the first step is an evaluation and X-rays so we know what we're actually treating. Book a new patient visit or call (312) 987-4878.
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