By Draper Spinal Care | Draper, Utah
“Herniated disc” and “bulging disc” get used interchangeably so often that most people assume they mean the same thing. They do not, and the distinction matters when you are trying to understand your diagnosis, your treatment options, and whether non-surgical spinal decompression is the right direction for your situation. At Draper Spinal Care, disc-related pain is one of the most common reasons patients come through the door, and clearing up this confusion is usually one of the first conversations we have.
This post explains both conditions in plain terms, covers how the DRX9000 spinal decompression machine addresses them, and walks through who tends to respond well to this treatment and who is better served by a different approach.
Understanding What a Spinal Disc Actually Does
Spinal discs sit between each of the vertebrae in your spine. Each disc has two components: a tough outer layer called the annulus fibrosus, made of layered fibrocartilage, and a soft, gel-like interior called the nucleus pulposus. Together they function as shock absorbers, distributing load across the spine and allowing the flexibility that lets you bend, twist, and lift.
Discs do not have their own direct blood supply. They rely on a process called imbibition, essentially a pumping action driven by movement and load changes, to pull in nutrients and expel waste. When that process is disrupted by injury, sustained pressure, or degeneration, the disc begins to break down. That breakdown is where bulging and herniation enter the picture.
Bulging Disc vs. Herniated Disc: Where the Difference Lies
A bulging disc occurs when the outer annulus weakens and the disc extends beyond its normal boundary, like a hamburger patty that is too wide for its bun. The outer layer remains intact. The disc is compressed and pushing outward, but the nucleus has not broken through. Bulging discs are extremely common, affect a broad circumference of the disc, and in many cases cause no symptoms at all. When they do produce pain, it is typically because the bulge is encroaching on a nearby nerve root or the spinal canal.
A herniated disc involves a rupture in the annulus itself. The nucleus pulposus pushes through the tear and protrudes outward, sometimes significantly. Because herniated material tends to contact nerve tissue directly and can trigger a localized inflammatory response, herniations are often more acutely painful than bulges. The symptoms can include sharp radiating pain, numbness, tingling, or muscle weakness in the areas those nerves serve. A herniation in the lower back frequently produces sciatica, the shooting pain that travels through the buttock and down one leg.
Degree matters here too. A small herniation that contacts a nerve root in one direction will feel very different from a large central herniation pressing on the spinal cord. An MRI is typically what reveals the location, size, and direction of the problem, and it is also what helps determine whether conservative care or surgical intervention is the more appropriate path.
Both conditions can cause chronic, debilitating pain. Both can improve significantly without surgery. And both can be addressed, in the right candidates, through non-surgical spinal decompression.
How the DRX9000 Addresses Disc Pressure Without Surgery
The DRX9000 Lumbar True Spinal Decompression machine is a motorized traction table that applies a controlled, computer-regulated distraction force to specific segments of the lumbar spine. The patient is secured to the table at the pelvis, and the lower portion of the table moves in a precisely calibrated pattern, gently separating the targeted vertebrae.
That separation creates a negative intradiscal pressure, a partial vacuum effect inside the disc. The theory, supported by a body of clinical literature, is that this negative pressure draws the protruding disc material back toward center while simultaneously promoting the influx of water, oxygen, and nutrients into the disc. For a tissue that cannot resupply itself through circulation, this mechanically assisted exchange is clinically meaningful.
What distinguishes the DRX9000 from older traction tables is the specificity of the force application. The machine targets individual spinal segments rather than applying a general pull along the entire lumbar spine. The angle and magnitude of distraction are set based on the patient’s imaging and the location of the affected disc. The system also uses a sinusoidal pull pattern that cycles between distraction and partial release, which prevents the paraspinal muscles from reflexively contracting against the force, a problem that limited the effectiveness of earlier traction devices.
Sessions typically run around 30 to 45 minutes. Most treatment protocols at Draper Spinal Care involve a series of sessions over several weeks, often combined with NUCCA spinal care and other supportive therapies depending on the patient’s full clinical picture. Progress is tracked through symptom reporting and, when warranted, follow-up imaging.
Who Is a Good Candidate for Spinal Decompression
Non-surgical spinal decompression tends to produce the best results in patients with one or more of the following presentations: a confirmed lumbar disc herniation or bulge on MRI, chronic lower back pain that has not resolved with rest, medication, or conventional physical therapy, sciatica or radiating leg pain with a discogenic cause, or degenerative disc disease at one or more levels where the disc height has been reduced.
Patients who have had prior lumbar surgery and continue to experience disc-related symptoms are often still candidates for decompression, though each case is evaluated individually based on what was done surgically and the current state of the surrounding structures.
When Spinal Decompression Is Not Appropriate
Spinal decompression is not suitable for every patient with back pain, and part of what makes an evaluation at Draper Spinal Care useful is that Dr. Stockwell is straightforward about when it is not the right tool. Patients with spinal fractures, severe osteoporosis, spinal tumors, spinal infections, or significant spinal instability are not appropriate candidates. Pregnancy is also a contraindication for lumbar decompression. Patients with spinal fusion hardware are typically evaluated case by case.
There is also a meaningful distinction between disc pain and other sources of lower back pain that can present similarly. Facet joint dysfunction, sacroiliac joint problems, and muscular conditions may not respond to decompression the way disc pathology does. A thorough clinical evaluation, including a review of any existing imaging, is what determines whether decompression makes sense for a given patient or whether a different approach would be more effective.
Getting that evaluation before committing to a treatment protocol is not just good practice. It is the only way to know whether you are working on the right problem.
Find Out If You Are a Candidate at Draper Spinal Care
Disc-related pain is one of the leading reasons people end up in surgical consultations, and yet a significant portion of those patients could achieve lasting relief through conservative care if the right treatment is matched to the right diagnosis. Non-surgical spinal decompression with the DRX9000 is not a universal fix, but for patients with confirmed disc herniations, bulges, or degenerative disc disease, it is a legitimate and well-studied treatment path worth exploring before surgery becomes the conversation.
Draper Spinal Care serves patients throughout Draper, Sandy, South Jordan, and the greater Salt Lake City area. If you have an MRI showing disc involvement and have been living with pain that has not responded to other treatments, a decompression evaluation is a practical next step.
Bring your imaging if you have it. If you do not, we can discuss whether updated imaging makes sense before beginning any care. The goal is to understand your specific situation clearly before recommending anything.
