Spinal Decompression: Definition and Clinical Context

What Is Spinal Decompression?

Spinal decompression is a non-surgical, therapeutic technique that gently applies a controlled distracting force to the spine, creating negative pressure within the intervertebral discs. This negative pressure environment promotes the retraction of herniated or bulging disc material away from compressed nerve roots and allows nutrient-rich fluid to re-enter desiccated discs — a process critical for healing in tissue with limited blood supply.

In clinical practice, "spinal decompression" refers to both:

• Mechanical decompression — performed with FDA-cleared motorized traction devices like the Antalgic-Trac
• Surgical decompression — procedures such as laminectomy or discectomy performed in an operating room

This glossary entry covers non-surgical mechanical decompression.

Why Spinal Decompression Matters

The intervertebral disc sits between each pair of vertebrae and acts as the spine's shock absorber. Discs do not have a direct blood supply — they receive oxygen and nutrients through a process called imbibition, where movement and pressure changes drive fluid in and out of the disc.

When a disc degenerates, dries out, or herniates, it can press against the spinal cord or nerve roots, causing:

• Localized back or neck pain
• Radiating pain (sciatica, arm pain/cervical radiculopathy)
• Numbness and tingling in the extremities
• Muscle weakness

Conventional chiropractic adjustment and physical therapy can address surrounding muscle tension and spinal alignment, but they cannot create the sustained intradiscal pressure reduction that mechanical decompression achieves. For patients with significant disc pathology — herniation, bulge, or severe degeneration — decompression is often the non-surgical intervention that makes the difference between ongoing pain and meaningful recovery.

How Spinal Decompression Works at McNamara Chiropractic Center

At McNamara Chiropractic Center, spinal decompression is delivered using the Antalgic-Trac system — a computer-controlled motorized traction table designed specifically for therapeutic spinal decompression. The protocol:

1. Patient positioning: The patient is comfortably secured on the table with a pelvic harness targeting lumbar decompression (or a cervical harness for neck decompression)
2. Parameter setting: Dr. McNamara sets the distraction force (calibrated to body weight and tolerance) and the angle of pull (adjusted to target specific disc levels)
3. Treatment cycle: The device alternates between periods of distraction and relaxation — the classic "hold and release" cycle that research supports as more effective than sustained static traction
4. Duration: Sessions typically run 15 to 25 minutes
5. Combination therapy: Spinal decompression at McNamara is integrated with Class IV Laser Therapy and Shockwave Therapy in the full Spinal Decompression Program

A typical program involves 15 to 25 sessions, assessed at regular intervals.

Who Is a Candidate?

Spinal decompression is most appropriate for patients with:

• Lumbar disc herniation
• Cervical disc herniation
• Bulging discs
• Degenerative disc disease
• Sciatica (when caused by disc compression)
• Facet joint syndrome

It is not appropriate for patients with spinal instability, fractures, severe osteoporosis, or certain post-surgical situations. A thorough evaluation with Dr. McNamara determines candidacy.

Interested in spinal decompression? Learn more about our Spinal Decompression Program or call (954) 943-1100.

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McNamara Chiropractic Center | 3320 N. Federal Highway, Suite 101, Lighthouse Point, FL 33064 | (954) 943-1100