SOT Chiropractic Research and Evidence

Patients often ask: "Is this actually proven?" It is a fair question, and it deserves an honest answer — not a defensive one.

Here is the honest answer. Sacro Occipital Technique has been clinically practiced in thousands of offices worldwide for over 90 years. It has an active research community coordinated by the Sacro Occipital Research Society International's Evidence-Based Research Network (EBRN). It has peer-reviewed publications across the chiropractic and manual-therapy literature. And many of the principles now used routinely in other chiropractic and manual therapy techniques were originally described and published by Dr. Major Bertrand DeJarnette and his collaborators.

That said, SOT — like most manual therapy techniques — is not supported by the same volume of randomized controlled trials that you would find for, say, a blockbuster pharmaceutical. There are structural reasons for that (no pharmaceutical company funds research into hands-on techniques), and it is a limitation we are honest about. What SOT does have is a long clinical track record, a growing body of peer-reviewed case series and clinical studies, strong mechanistic plausibility rooted in established neuroanatomy, and an international community of practitioners who can produce reliable, reproducible findings on examination.

This page summarizes what the research actually shows, organized by the kinds of conditions our patients most often ask about.

The Research Infrastructure Behind SOT

Before looking at specific conditions, it is worth understanding what supports SOT research:

• SORSI's Evidence-Based Research Network (EBRN) — a research arm dedicated to coordinating and publishing SOT-focused clinical studies.
• "The Source" — SORSI's professional journal, publishing original research, case reports, and clinical commentary.
• International affiliates — SOT research groups in Japan (led in part by Dr. Hirotaka Miyano), Europe, and Australia contribute to the body of literature.
• Cross-citation in the broader chiropractic literature — DeJarnette's work is cited in publications like the Journal of Chiropractic Medicine, Chiropractic & Manual Therapies, and the Journal of Manipulative and Physiological Therapeutics.

The Safety Literature

The single strongest, most consistent finding in the chiropractic research literature is that chiropractic care is extremely safe.

• The incidence of serious adverse events from a chiropractic adjustment is estimated at less than 1 per 6,000,000 visits across multiple published analyses.
• The average chiropractor pays $1,000–$2,000 per year in malpractice insurance. The average medical doctor pays substantially more per week. This real-world actuarial data reflects the real-world safety gap.
• SOT is even safer than the chiropractic average because it relies on low-force, blocks-based corrections rather than high-velocity cervical thrusts. The vast majority of documented serious chiropractic injuries have involved aggressive cervical manipulations — not the kind of work done in an SOT practice.

Pediatric Chiropractic Research

Pediatric chiropractic — and specifically the SOT approach to pediatrics — has a meaningful research literature covering:

• Infant colic — multiple published studies and systematic reviews show clinically significant reductions in crying time and parental distress after chiropractic care. Cochrane-level reviews have noted the methodological challenges but also the consistent direction of findings.
• Recurrent otitis media (ear infections) — published case series and retrospective analyses describe symptom reduction and decreased recurrence following cranial and SOT-based care, particularly for children with Eustachian tube dysfunction.
• Nursing and latch difficulties — case reports and small series describe improved latch following cranial and cervical spine correction in infants with birth trauma.
• Torticollis — chiropractic care for positional torticollis has been described in case series with favorable outcomes.
• Enuresis (bed-wetting) — multiple studies have reported reductions in nocturnal enuresis frequency with chiropractic care, particularly involving the lumbosacral region.

Pediatric chiropractic, performed gently and appropriately by a trained practitioner, has a strong safety profile in the published literature.

Headaches and Migraines

The research literature on chiropractic care for headaches is among the strongest in the field.

• Multiple randomized controlled trials support the use of spinal manipulation for cervicogenic headache.
• Systematic reviews suggest benefit for tension-type headache and migraine with chiropractic care.
• The addition of cranial work — specifically SOT Craniopathy — has been described in case reports and small series for migraine, post-concussion headache, and cluster headache. Post-concussion and cranial-driven headaches often respond to cranial work after failing other approaches.

Post-Concussion Syndrome

A growing body of clinical literature describes improvement in post-concussion symptoms — fatigue, brain fog, headache, balance problems, sleep disturbance — following cranial and upper-cervical chiropractic care. The mechanistic reasoning is well-grounded: concussion disrupts cranial bone motion and CSF flow, and restoring those can meaningfully change outcomes.

Musculoskeletal Conditions

The broader chiropractic literature — which applies to SOT because SOT is a chiropractic technique — strongly supports manipulation for:

• Low back pain (multiple RCTs and systematic reviews, including federal clinical guidelines in the US)
• Neck pain (multiple RCTs)
• Sciatica and radicular pain (evidence supporting spinal manipulation as part of a conservative approach)
• Whiplash-associated disorders
• Extremity conditions including shoulder impingement, tennis/golfer's elbow, plantar fasciitis

SOT-specific studies within these categories are a subset of this broader evidence base.

Visceral / CMRT Research

CMRT — the organ-adjusting branch of Advanced SOT — has a smaller but meaningful research base. Case reports and series have described improvement in:

• GERD and functional dyspepsia
• Chronic constipation
• Dysmenorrhea and menstrual irregularities
• Fertility outcomes (including case reports of pregnancy after extended infertility)
• Adrenal fatigue and HPA-axis-related complaints

Mechanistically, CMRT is well-grounded in established autonomic neuroanatomy. The segmental innervation of abdominal and pelvic viscera by specific spinal cord levels is textbook anatomy. CMRT applies that anatomy clinically.

Why We Also Value Clinical Experience

Research is essential, but it is not the only source of valid knowledge in medicine. Clinical experience — tens of thousands of patient encounters accumulated over decades in a community of practitioners sharing findings — produces reliable knowledge too. The best care integrates both.

Dr. Foss practices in the full weight of this tradition: the research, the 90+ years of SORSI-accumulated clinical knowledge, and his own 23+ years of patient care experience.

How to Read the Research Yourself

If you want to go deeper:

• PubMed — search terms like "sacro occipital technique," "chiropractic craniopathy," "cmrt chiropractic," or the specific condition you are interested in combined with "chiropractic."
• SORSI's publications — "The Source" journal and SORSI-published textbooks are available through SORSI's catalog.
• Chiropractic & Manual Therapies (open-access journal) — regularly publishes chiropractic research including SOT-related work.

Ready to Experience Evidence-Informed SOT Care?

We invite questions about the research. If you have read a study, brought a concern from your medical provider, or simply want to know what the literature says about a specific condition, ask us at your first visit. Dr. Foss treats patients — not diagnoses — but the evidence is always part of the conversation.

Book Free Evaluation → Phone: (210) 685-1994 Address: 2318 NW Military Hwy Suite 103, San Antonio, TX 78231