Exploring the Connection Between Sacro-Occipital Technique and Sphenobasilar Balance in Chiropractic Care
- Jason Scoppa
- Mar 22
- 4 min read
Updated: Apr 2
Chiropractic care often focuses on restoring normal function to the nervous system by addressing structural imbalances in the body. One technique that stands out in this field is the Sacro-Occipital Technique (SOT). This method emphasizes the relationship between the sacrum and the occiput, aiming to correct imbalances that affect the central and peripheral nervous systems. A 1998 article by Blum and Curl explores how SOT relates to the positioning of the sphenobasilar symphysis, a key cranial structure, and how this connection influences chiropractic treatment.
Understanding this relationship can deepen the effectiveness of chiropractic interventions and provide new insights into how the body adapts to stress.

The Foundations of Sacro-Occipital Technique
SOT is built on the idea that the body adapts to physical stress through specific patterns of imbalance, particularly in the sacroiliac and lumbosacral regions. Chiropractors classify these imbalances into three categories, each reflecting a different way the body compensates for stress. These categories guide the choice of treatment procedures aimed at restoring balance and improving nervous system function.
The technique assumes that by correcting these imbalances, chiropractors can influence the nervous system and, by extension, the functions it controls throughout the body. This holistic approach connects the spine, pelvis, and nervous system in a way that supports overall health.
The Role of the Sphenobasilar Symphysis
The sphenobasilar symphysis (SBS) is a joint located at the base of the skull where the sphenoid and occipital bones meet. It plays a crucial role in cranial motion and is a focal point in osteopathic and craniosacral therapies. The positioning of the SBS affects the tension in the meninges, the protective membranes surrounding the brain and spinal cord, which in turn influences nervous system function.
Blum and Curl suggest that the distortions seen in SOT categories may be linked to the positioning of the SBS. This means that cranial imbalances could contribute to or result from sacroiliac and lumbosacral imbalances, creating a continuous mechanical and neurological relationship between the cranium and pelvis.
Connecting the Cranium and Pelvis Through Functional Anatomy
The article highlights several anatomical and functional continuities that connect the cranium and pelvis:
Meningeal Tension: The dura mater, a tough membrane covering the brain and spinal cord, extends from the skull base down to the sacrum. Tension or distortion in this membrane can affect both cranial and pelvic structures.
Nervous System Pathways: Nerves passing through the sacral and cranial regions influence muscle tone and joint function, linking these areas functionally.
Gait and Posture: Abnormalities in pelvic alignment can alter gait patterns, which may reflect or contribute to cranial imbalances.
By understanding these connections, chiropractors can better assess how mechanical stresses in one area affect the other, leading to more targeted and effective treatments.
Orthopedic Testing and Gait Analysis in SOT Assessment
Blum and Curl emphasize the use of orthopedic tests and gait analysis to identify SOT category distortions. These assessments help reveal how the body adapts to stress and where imbalances occur. For example:
Orthopedic Tests: Specific maneuvers can detect sacroiliac joint dysfunction or lumbosacral instability.
Gait Analysis: Observing walking patterns can uncover compensations related to pelvic or cranial imbalances.
These tools provide practical ways to connect clinical findings with the underlying anatomical and neurological relationships discussed in the article.
Implications for Chiropractic Treatment
The relationship between SOT categories and SBS positioning suggests that treating the sphenobasilar symphysis could influence sacroiliac and lumbosacral imbalances. Blum and Curl introduce the "Sphenobasilar Strain Stacking" technique as a method to address these distortions.
This approach involves carefully assessing and correcting SBS strains to reduce tension in the meninges and improve nervous system function. By doing so, chiropractors may indirectly correct sacro-occipital imbalances, enhancing overall treatment outcomes.
Sacro-Occipital Technique and Sphenobasilar Balance: Practical Takeaways for Chiropractors
Holistic Assessment: Consider both cranial and pelvic structures when evaluating patients with nervous system dysfunction or musculoskeletal complaints.
Use Functional Tests: Incorporate orthopedic testing and gait analysis to identify patterns of imbalance related to SOT categories.
Address SBS Positioning: Explore techniques that target the sphenobasilar symphysis to influence sacro-occipital distortions.
Understand Mechanical Continuities: Recognize the anatomical links between the cranium, meninges, and pelvis to guide treatment strategies.
These steps can help chiropractors provide more comprehensive care that supports the nervous system and improves patient outcomes.
Blum, CL, Curl, DD, "The Relationship Between Sacro-occipital Technique and Sphenobasilar Balance. Part One: the Key Continuities," Chiropractic Technique, Aug 1998, Vol. 10, No. 3, Pp. 95-100. Careful inspection of the underlying theories and anatomical basis of the chiropractic many techniques, including sacro-occipital technique (S.0.T.), reveals there are many procedures which are called upon to restore normal function to the central and peripheral nervous systems. From this chiropractors have postulated that they have the ability to affect the nervous system and everything the nervous system controls. SOT reported to be able to accomplish this effect on the nervous system by viewing sacroiliac and lumbosacral imbalances in terms of three categories with each category reflecting the method the body uses to adapt to stress (e.g., physical stress).
This article suggests that there is a relationship between the SOT category system and sphenobasilar symphysis positioning. To assist the reader in this understanding various features from functional anatomy, orthopedic testing, gait analysis and osteopathic theories will be utilized. Part One of this article assists the reader in understanding various continuities within the body, as they exist between the central nervous system and associated meninges and between the cranium and the pelvis. An understanding the mechanical stresses upon these areas is important for every chiropractor.
Part Two postulates that the SOT. category distortions are affected when treating the sphenobasilar symphysis. The "Sphenobasilar Strain Stacking" technique is presented as a method of affecting S.O.T. distortions.




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