The DRX9000 spinal decompression machine creates healing by generating negative intradiscal pressure inside your spinal discs, dropping pressure from a painful positive range all the way down to between -150 and -200 mmHg.
This vacuum-like effect pulls herniated or bulging disc material back toward center, relieves compression on nerve roots, and draws in the nutrients your discs need to actually repair themselves.
In this blog post, we’ll get into the physics of what’s actually happening when patients utilize our DRX9000 machine for healing in our San Diego chiropractic office.
What Actually Happens Inside a Damaged Disc
To understand why the DRX9000 works, you first need to understand what goes wrong in the first place. Your spinal discs are essentially hydraulic cushions — each one is made up of a tough outer ring called the annulus fibrosus and a soft, gel-like inner core called the nucleus pulposus. When your spine is healthy, these discs absorb shock, distribute load, and allow the spine to move freely in all directions.
The problem is that spinal discs have very limited blood supply. They rely almost entirely on a process called imbibition, essentially a slow, pressure-driven pumping of nutrients and fluid in and out of the disc through movement and changes in pressure.
When a disc becomes injured, compressed, or degenerated, this nutrient exchange breaks down. The disc begins to dry out, shrink, and lose its ability to cushion the spine. The nucleus pulposus can push outward, bulging or herniating through the annulus fibrosus and pressing directly on the surrounding nerve roots.
Under normal daily activities, the pressure inside a spinal disc stays in positive territory.
Lying down registers around +25 mmHg, standing pushes it to roughly +100 mmHg, and sitting can drive it even higher. All of that is positive pressure, meaning the disc is being compressed, not decompressed.
This is why so many patients with disc injuries feel worse sitting at a desk all day and cannot seem to find relief no matter what position they try.
Why Standard Traction Falls Short
Many patients ask us whether traction or an inversion table could accomplish the same thing as the DRX9000. It is a fair question, and the short answer is: no.
Traditional traction and inversion therapy can reduce intradiscal pressure from around +90 mmHg down to roughly +30 mmHg. That is still positive pressure. The disc is under less load, but there is no vacuum effect, no retraction of herniated material, and no meaningful increase in nutrient flow into the disc.
You are essentially taking some weight off the disc, not actively creating a healing environment inside it.
The distinction matters because the mechanism of healing in a compressed disc requires more than just pressure relief. It requires a shift from positive to negative pressure and that is precisely what the DRX9000 is engineered to deliver.
The Physics Behind the DRX9000
One of the most effective treatments we employ at Intouch Chiropractic in San Diego, CA is spinal decompression with our DRX9000.
The DRX9000 is a computer-controlled spinal decompression table that applies precise, targeted distraction forces to specific segments of the lumbar spine. The system uses a specialized harness and a sophisticated algorithm that applies tension in a logarithmic, wave-like pattern, gradually building force, holding, releasing, and cycling through the process repeatedly during each session.
This approach is critically important because it defeats a major obstacle that undermines traditional traction: muscle guarding.
When the spine is pulled too quickly or with too much force, the paraspinal muscles reflexively contract to protect the spine. This muscle guarding actually increases disc compression rather than reducing it, which is why simple traction produces such limited results.
The DRX9000’s sensor-driven, logarithmic pull profile applies force slowly enough that the muscles do not trigger their protective reflex, allowing the spine to actually elongate and create true separation between vertebral segments.
As the vertebrae separate, the disc space opens up. The nucleus pulposus (which is fluid-based) experiences a drop in mechanical pressure. When that pressure crosses below atmospheric baseline and enters the negative range, something remarkable happens: the disc behaves like a vacuum.
Research using in-vivo intradiscal pressure measurements has documented pressures falling into the -100 to -160 mmHg range during true spinal decompression, with clinical protocols on the DRX9000 documented at between -150 and -200 mmHg. This is not a marginal shift.
It is a fundamental reversal of the pressure physics inside the disc.
“The drx900c spinal decompression machine gave me my life back. The staff are very helpful and nice. highly recommend.” – Intouch Chiropractic Spinal Decompression Review by Dylan G.
What Negative Pressure Does Inside the Disc
Three distinct healing processes are activated when the disc enters this negative pressure environment during spinal decompression treatments.
- First, herniated and bulging disc material is drawn back toward center. The vacuum effect created inside the disc exerts a centripetal force on the nucleus pulposus. Material that has pushed outward through tears in the annulus fibrosus is mechanically encouraged to retract back toward the center of the disc. This directly reduces or eliminates the compression on the nerve roots that is responsible for pain, numbness, tingling, and weakness in the legs or arms. Multiple MRI studies have documented measurable increases in disc height and reductions in herniation size following a course of DRX9000 treatment.
- Second, nutrient and fluid exchange is restored. The negative pressure gradient creates a powerful imbibition effect, essentially a biological pump that draws oxygen, water, and metabolic nutrients back into the disc from the surrounding tissue. Discs that have been chronically compressed and nutrient-deprived begin to rehydrate. Increased disc height is one of the observable outcomes of this rehydration process.
- Third, the body’s natural repair mechanisms are activated. When nutrient-rich fluid flows back into the disc, the body’s fibroblastic response (the cellular process responsible for tissue repair) can finally begin doing its job. Fibroblasts are the cells that rebuild connective tissue, including the tough collagen fibers that make up the annulus fibrosus. Without adequate nutrient supply, these cells cannot function. Restoring that supply creates the biological conditions necessary for genuine structural healing, not just temporary pain relief.
What a DRX9000 Session Looks Like at Our Office
At Intouch Chiropractic in San Diego, DRX9000 sessions are integrated into a comprehensive care plan that may also include NUCCA chiropractic care, MLS laser therapy, and rehabilitative exercise.
Patients lie comfortably on the DRX9000 table and are secured with a specialized pelvic harness. The computer-controlled system applies distraction forces at precise angles and intensities calibrated to each patient’s specific condition, targeting the exact disc levels involved, commonly L4-L5 or L5-S1 for lumbar cases.
Sessions typically last around 30 minutes. Most treatment protocols involve a series of sessions spread over several weeks, allowing the cumulative effects of negative pressure, rehydration, and fibroblastic repair to build progressively. Patients often begin noticing relief within the first several sessions, though the structural improvements documented on MRI imaging develop over the full course of treatment.
The conditions that respond best to DRX9000 spinal decompression include herniated and bulging discs, degenerative disc disease, sciatica caused by disc compression, and facet syndrome.
If you have been told that surgery may be your only option, it is worth understanding that a meaningful percentage of patients who commit to a full course of non-surgical spinal decompression avoid surgery entirely.
When to Seek Professional Evaluation
Not every case of back pain is the same, and DRX9000 spinal decompression is not appropriate for every patient. You should seek a professional evaluation promptly if you are experiencing any of the following:
- Persistent lower back pain lasting more than four to six weeks that has not responded to rest or conservative care
- Radiating pain, numbness, or tingling running down one or both legs
- Progressive weakness in the legs or feet
- A diagnosis of herniated disc, bulging disc, sciatica, or degenerative disc disease
- Back or leg pain that significantly limits your ability to work, sleep, or perform daily activities
- Previous back surgery that did not fully resolve your symptoms
Early evaluation allows us to determine whether DRX9000 therapy is appropriate for your case and to begin treatment before disc degeneration progresses further. The physics of the DRX9000 work best when there is still disc material to work with, which makes early intervention an important factor in outcomes.
Intouch Chiropractic patient uses the spinal decompression machine to treat a bulging disc
Frequently Asked Questions
How is the DRX9000 different from an inversion table or traction device?
Inversion tables and traditional traction can reduce positive intradiscal pressure but do not generate negative intradiscal pressure. The DRX9000 uses a computer-controlled, logarithmic distraction protocol that actively defeats muscle guarding and creates a true vacuum effect inside the disc, something passive traction devices are not designed or capable of achieving.
Does the negative pressure created by the DRX9000 hurt?
No. Most of our Southern California patients find DRX9000 sessions comfortable and even relaxing. The controlled, gradual nature of the distraction force avoids triggering the protective muscle spasm response that can make other forms of spinal traction uncomfortable. Some patients experience mild soreness during the first few sessions as the tissues begin to mobilize, but this typically resolves quickly.
How many sessions are typically needed to see results?
Most DRX9000 protocols involve between 15 and 20 sessions over a period of four to six weeks. Many patients begin noticing meaningful pain relief within the first several sessions. Structural improvements (such as increased disc height and herniation retraction visible on MRI) develop over the full course of treatment. The exact protocol our expert team of chiropractors employ is customized to each patient’s diagnosis and response to care.
Can the DRX9000 help if I have already had spinal surgery?
In many cases, yes, particularly for patients experiencing continued disc-related pain after a prior surgery that did not fully resolve the underlying issue. However, certain post-surgical conditions may require additional evaluation before DRX9000 therapy is appropriate. Our team will review your surgical history and imaging during your initial consultation to determine the best course of action.
Is spinal decompression with the DRX9000 a substitute for surgery?
For many patients with herniated discs, degenerative disc disease, and sciatica, non-surgical spinal decompression can achieve results that make surgery unnecessary. It is always appropriate to exhaust conservative options before pursuing surgical intervention, and the DRX9000 represents one of the most clinically advanced non-surgical options currently available.
Ready to Experience the Science of Healing?
If you are dealing with a herniated disc, bulging disc, degenerative disc disease, or chronic sciatica in San Diego, our team at Intouch Chiropractic wants to help you understand whether DRX9000 spinal decompression is right for you. We combine the DRX9000 with NUCCA chiropractic care and advanced laser therapy to address not just the disc, but the entire structural and neurological picture. Call us today at 619-756-7510 or contact us online to schedule your consultation. Our office is located at 2425 Camino Del Rio S #100, San Diego, CA 92108.
