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The Holy Grail

Cross section of the spinal cord.

Cross section of the spinal cord.

If there is one thing chiropractors can agree on, it is that the nervous system can be disturbed and cause negative effects on the body. There are varying theories as to the reason for this but most chiropractors conclude it is related to the bones in the vertebral column being out of alignment. The Dentate Ligament – Cord Distortion Hypothesis is just one of those theories. This is, to some chiropractors, the Holy Grail to their rational and purpose in caring for patients.

The Dentate Ligament theory follows the premise that the spinal cord is anchored to various points in the vertebral column and chronic mal-positioning of these structures could lead to torsion of the spinal cord. The torsion on the spinal cord may irritate and cause disturbances in transmission of mental signals or impulses leading to a diverse number of symptoms to appear in the person.

If the spinal cord is directly attached to the upper cervical spine, and if the vertebra were put out of alignment, would that cause interference with the nervous system?

Dr. John D. Grostic explains in his research:

This hypothesis states that misalignments of the upper cervical vertebrae, because of their unique attachment to the spinal cord by means of the dentate ligaments, can directly stress and deform the spinal cord. Subsequently, this stress on the cord, in addition to direct mechanical irritation, may produce venous occlusion with stasis of blood and resulting anoxia in particular areas of the upper cervical cord.

Venous occlusion and stasis of blood in the cranial region is something being heavily researched for it implications on neuro-degenerative diseases such as Multiple Sclerosis and Parkinson’s Disease. This is being looked at by vascular surgeons as a possible accessory to the cause of some of these diseases.

The research identifies three “challenges” that validate the presupposition that a misaligned vertebra in the upper cervical region will cause torsion on the spinal cord rendering interference of mental impulses and demonstrating physical and/or neurological manifestations.

Challenge 1

Is the dentate ligament mechanically linked to the osseous structures of the upper cervical spine?

Challenge 2

Is the dentate ligament strong enough to deform the spinal cord?

Challenge 3

Are the osseous misalignments large enough to cause mechanical irritation to the cord?

The author relates positive findings of all three challenges, confirming the theory that the plausibility of a misalignment in the upper cervical region to cause physical and neurological disturbances in the individual.

I encourage you to read the full article to gain a better understanding of how this phenomena is explained.

Read full article

References

  • Grostic, John D. The Dentate Ligament – Cord Distortion Hypothesis Chiropractic Research Journal published 1988
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