Intersegmental Traction

What it is

Intersegmental traction works by producing traction-induced intersegmental motion, meaning controlled, repetitive separation and approximation of adjacent vertebral bodies. A motorized table fitted with rolling wave-like contact points moves slowly beneath the patient's reclining spine, creating mild separation forces across multiple spinal levels in sequence. These separation forces are thought to open the intervertebral foramina (the bony canals through which spinal nerve roots exit), stretch the paraspinal ligaments and muscles, and reduce intradiscal pressure (the compressive load inside each spinal disc). ^[2] This combination of effects makes intersegmental traction a logical preparatory step before chiropractic adjustment, because ligaments and muscles that have already been gently lengthened are generally easier to mobilize during hands-on care.

The cervical spine (neck) and lumbar spine (lower back) are the regions most often addressed with intersegmental traction, though thoracic applications are also used. In the cervical region, the technique can produce measurable separation of vertebrae, reduction in intradiscal pressure, and facet joint separation — the small paired joints at the rear of each vertebral level that guide and limit spinal motion. ^[2] The mechanical stimulus also promotes circulation of synovial fluid within facet joints and encourages the passive diffusion of nutrients into disc tissue, which in adults lacks a direct blood supply and depends almost entirely on fluid exchange for nutritional delivery. Patients with Low Back Pain or Neck Pain are among those most frequently referred for this modality within a chiropractic setting.

What to expect

A typical intersegmental traction session lasts between five and fifteen minutes and requires no active effort from the patient. The patient lies face-up on the traction table, which is equipped with a set of rollers positioned beneath the spine. The rollers travel slowly along the length of the spine in a rhythmic, wave-like pattern, applying a gentle distractive and oscillatory force to each segment in turn. The sensation is generally described as a mild, pleasant rolling pressure. No forceful thrust or sudden movement is involved, and most patients find the experience relaxing rather than uncomfortable.

Before beginning, the clinician adjusts the roller height, speed, and tension to match the patient's size, spinal condition, and treatment goals. Patients with acute disc herniations, recent spinal fractures, significant osteoporosis, or other structural contraindications are screened carefully and may not be candidates for this technique. For those who are appropriate candidates, intersegmental traction is typically delivered at the start of a chiropractic visit to warm up and elongate the soft tissue structures before a chiropractic adjustment is performed, though it may also follow adjustment to help maintain the improved segmental mobility achieved during hands-on care. For a broader picture of the services available at this practice, see .

Key benefits

• Intersegmental traction reduces intradiscal pressure and gently opens the intervertebral foramina, which may temporarily relieve mechanical compression on spinal nerve roots. ^[2]
• The rhythmic motion of the table increases passive range of motion across restricted spinal segments, making subsequent hands-on chiropractic adjustment easier to perform and better tolerated by the patient.
• Repeated gentle distraction stimulates fluid exchange within avascular (lacking direct blood supply) disc tissue, supporting the passive nutritional delivery that spinal discs depend on for long-term health.
• Paraspinal muscle spasm (involuntary sustained contraction of muscles alongside the spine) is reduced through the sustained oscillatory stretching that intersegmental traction provides, addressing one of the most common contributors to spinal stiffness and pain.
• The technique is passive, non-invasive, and requires no injections or medications, making it well-suited for patients who are sensitive to more forceful manual techniques or who are early in their course of care.

Who benefits most

Intersegmental traction is used most frequently with patients who present with segmental restriction, meaning vertebral levels that demonstrate reduced range of motion relative to adjacent segments on clinical examination. A vertebral subluxation complex, classified under ICD-10-CM code M99.1, is characterized by abnormal movement or function of spinal segments and is identified clinically by restricted intersegmental range of motion, among other markers. ^[8] Patients with this finding, whether they are experiencing low back pain, neck pain, or referred symptoms, are reasonable candidates for intersegmental traction as part of a multi-modal chiropractic plan.

Patients who report morning stiffness, postural fatigue, or a general sense of spinal tightness that does not fully resolve with movement often respond well to the combination of intersegmental traction and chiropractic adjustment. Those whose primary complaint is Headaches & Migraines originating from the cervical spine may also benefit, given the cervical soft-tissue stretching and facet joint mobilization the technique provides. Intersegmental traction is generally not the sole treatment for any condition, and it delivers the most clinical value when it is integrated into a course of care that includes appropriate examination, Spinal Decompression where indicated, and ongoing monitoring of the patient's response.

How it connects to chiropractic

The rationale for pairing intersegmental traction with chiropractic adjustment draws on the same anatomical and physiological principles that govern manual spinal care. chiropractic adjustment targets specific hypomobile (reduced-motion) vertebral segments with a controlled high-velocity low-amplitude thrust, restoring normal intersegmental motion and reducing neuromuscular dysfunction. When paraspinal soft tissues are already lengthened and intervertebral joints are primed through traction, the forces required during adjustment are reduced and segmental mobility is more readily restored. This sequencing reflects a principle well established in clinical practice: tissue preparation improves the efficiency and tolerability of subsequent manual care.

Research on cervical traction has demonstrated that traction forces applied to the cervical spine produce measurable biomechanical effects including separation of vertebrae, reduction of intradiscal pressure, increase of the intervertebral foramen dimensions, and soft tissue stretching. ^[2] A separate investigation examining the biomechanics of mechanically assisted cervical distraction found reproducible traction forces at specific vertebral levels, including C5 and the occiput, during cyclic application protocols. ^[1] These findings provide a mechanistic basis for using intersegmental traction as a clinical preparatory tool, separate from the question of whether traction alone resolves pain.

It is worth acknowledging that the evidence base for traction as a standalone treatment for low back pain with sciatica (pain radiating from the lower back into one or both legs along the path of the sciatic nerve) is limited. A Cochrane systematic review found low-to-moderate quality evidence that traction probably has no meaningful impact on pain intensity, functional status, or global improvement when used in isolation for this population. ^[3] A parallel analysis confirmed this finding across acute, subacute, and chronic presentations. ^[4] Neither of these reviews examined intersegmental traction combined with chiropractic adjustment, which is how the technique is used in this practice. The absence of strong standalone evidence does not invalidate the mechanistic rationale or the clinical utility of traction as one component within a broader plan of care.

A separate body of literature involving 25 randomized controlled trials and over 2,000 patients examined manual and manipulative therapies for spinal conditions more broadly, including combinations that incorporated traction. ^[6] That body of evidence supports the integration of multiple modalities rather than reliance on any single intervention. ^[7] At applies intersegmental traction within this integrative framework, pairing it with chiropractic adjustment and, where clinically appropriate, spinal decompression for disc-related presentations or softwave therapy for soft-tissue involvement. For information about scheduling a clinical evaluation, visit . If you would like to learn more about's background and clinical approach, see .

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