The spine has three major regions: the cervical, the thoracic, and the lumbar spine.
Below the lumbar region are the sacrum and coccyx bones, which are in the pelvic area. Each region of the spine has a unique, gradual curvature, and the overall S-curvature of the spine is specifically designed to maintain proper alignment of the body, allow for flexibility and movement, and provide protection for the spinal cord.
The spine is comprised of 33 vertebrae.
Twenty-four separate vertebrae are located in the cervical, thoracic, and lumbar region, and nine vertebrae are fused together to form the sacrum and the coccyx. The vertebrae take slightly different forms and appearances along the length of the spine, but all have the same basic structures. Cushion-like discs separate the first 24 vertebrae bones, giving the spine the ability to flex and bend.
Soon after the discovery of the X-ray, chiropractors began using this tool in the examination and care of the spine.
Besides revealing the presence or absence of proper spinal curves, side views of the spine can more easily show the long-term effects of neglected spinal trauma.
Think of it as Spinal Decay
This process in the spine has similarities to tooth decay in that it shows up usually because of neglect. Also, like tooth decay, it can happen to anyone, regardless of age. Because it is often seen in older people, many believe it’s merely the normal aging process. However, it appears that this progressively worsening, degenerative condition is the result of uncorrected spinal misalignment. It’s one of the ways your body deals with the stress of gravity.
Three Phase Process
Spinal decay is a process. Whether you take three snapshots of the process or twenty-three snapshots, it’s a process. We use the three-phase model based on the book Managing Low Back Pain, by W. H. Kirkaldly-Willis and Thomas Bernard, Jr., plus Anatomico-Roentgenographic Studies of the Spine, by Lee A. Hadley, M.D. We find that it makes the differences between each phase great enough so our patients can appreciate what they’re seeing.
Text Book Normal
While this process can occur anywhere in the spine, it’s easiest to see in the cervical (neck) spine. This is what the side view of the neck should look like. From the side, the neck should have a graceful forward curve. The edges of each bone are well defined. There should be equal disc spacing between each bone and the openings for nerve roots should be clear and unobstructed.
Some patients who begin chiropractic care in Phase One discover a restoration of their spinal curves and improved range of motion. Success with Phase Two patients is less predictable and depends on many factors. While we can do little after decades of neglect with Phase Three cases, we instead turn our attention to those areas of the spine that have not yet been lost to the process. It’s impossible to predict what effect, if any, chiropractic care will have on slowing, stopping or reversing this process. Nor can a particular phase be used to predict how much care will be needed.
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