Radiologic Manifestations of Spinal Subluxations
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This is Chapter 6 from RC’s best-selling book:
“Basic Chiropractic Procedural Manual”
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Chapter 6: Radiologic Manifestations of Spinal Subluxations
This chapter describes the radiologic signs that may be expected when spinal subluxations are demonstrable by radiography. Through the years, there have been several concepts within the chiropractic profession about what actually constitutes a subluxation. Each has had its rationale (anatomical, neurologic, or kinematic), and each has had certain validity contributing to our understanding of this complex phenomenon.
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Kinetic Intersegmental Subluxations
Segmental hypomobility, also called a “fixation subluxation” by many clinicians, may affect one or several motor units.
It is characterized by reduced motion of the “Spinal Motion Unit” (Please refer to Spinal Anatomy 101), which has been forced to the extreme of a range of motion (eg, flexion, extension, etc). See Figure 6.14. Stress views or videofluoroscopy are necessary to depict this and other kinetic subluxations radiographically, but motion palpation and some orthopedic tests may reveal their presence clinically.
Editor’s Note: In the following picture, the inferior facet of C5 fails to slide forwards and upwards upon the superior facet of C6. Because of that, the IVF cannot open more fully, and the spinous process of C5 fails to move away from the C6 spinous. All together, these are the classic signs of HYPO-mobility.