Structure Determines Function

When viewed from the front (or back), the skull should be vertical, the atlas (1st vertebra) should be level and the cervical spine (neck) should be vertical – in other words, they should be perpendicular AKA orthogonal.

When assessed on a X-ray, Atlas Orthogonal Doctors of Chiropractic use this criteria to determine the quantity and quality of subluxation. Any departure from orthogonal is less than optimum and should therefore be corrected.


Dr. Darryl Roundy

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