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Arthur Plesa, DC, Scott Jackson, DC, Matthew Wolfertz, DC, David Shores, DC
Journal of Upper Cervical Chiropractic Research ~ September 22, 2025 ~ Pages 22-31
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Abstract
Background: Knee Chest Specific Chiropractic technique has pioneered a new radiographic image, called the KCSC Peritrope X-ray, for analyzing atlas and axis subluxation listings. This novel approach uses the principles of spinal biomechanics to visualize which joint is locked out of its normal range of motion.
Methods: The KCSC Peritrope X-ray images the cervical spine in maximal cervical rotation, with the patient facing the bucky for atlas subluxation listings that begin with AS (anterior-superior), and the patient facing the X-ray tube for atlas subluxation listings that begin with PI (posterior-inferior). This analysis focuses on joint biomechanics between the occipital condyles and atlas lateral masses, as well as between axis inferior facets and C3 superior facets. Specific points of analysis are used to compare joint biomechanics between the respective segments. A subluxation listing is then ascribed to the vertebra that does not demonstrate normal joint biomechanics.
Conclusion: The KCSC Peritrope X-ray represents a new development in the field of Chiropractic radiographic analysis for atlas and axis subluxation listings. In addition to the traditional static X-ray series taken of the cervical spine, the KCSC Peritrope X-ray provides a new biomechanical approach which determines the major subluxation and its specific listing. Using this biomechanical analysis, a new biomechanical finding for the craniocervical joint was discovered that has never been described before in the literature.
Keywords: biomechanics, Peritrope X-ray, knee chest specific chiropractic, vertebral subluxation
