Principles and practice of spinal adjustment; for the use of students and practitioners . ical scoliosis is commonly seen in individuals whouse the right arm almost exclusively in their work, and as aresult of the muscular contraction on the right side thespine is slightly drawn toward that side. This form of subluxation is due to a thinning of the lateralaspect of the intervertebral cartilaginous discs, which per-mits the sides of the bodies of a group of vertebrae to ap-proach each other. As a result of this lateral approximation ofthe vertebrae the transverse processes on the contracted sid
Principles and practice of spinal adjustment; for the use of students and practitioners . ical scoliosis is commonly seen in individuals whouse the right arm almost exclusively in their work, and as aresult of the muscular contraction on the right side thespine is slightly drawn toward that side. This form of subluxation is due to a thinning of the lateralaspect of the intervertebral cartilaginous discs, which per-mits the sides of the bodies of a group of vertebrae to ap-proach each other. As a result of this lateral approximation ofthe vertebrae the transverse processes on the contracted side VERTEBRAL SUBLUXATIONS 265 are brought toward each other on that side, while on the op-posite side they are widely separated. This results in amarked diminution in the vertical diameter of the interverte-bral foramina on the compressed side. The spinous processesof the involved vertebrae are displaced laterally. Scoliosis is seen in the cervical region of the spine incases of wry-neck. It is, however, met with most commonlyin the thoracic region. When the degree of scoliosis is very. Fig. 44. Scoliotic Subluxatiou. marked, a compensation curve in the cervical or lumbarregion is produced, which gives the vertebral column theappearance of the capital letter S. Fig. 44. Compression Subluxation.—This form of subluxation is,as its name implies, one in which the cartilaginous disc be-tween two vertebrae is thinned. This diminution in the thick-ness of the disc permits the vertebra which rests upon it toapproach the vertebra below it, and « produce a decreasein the vertical diameter of the intervertebral foramina betweenthem. 266 SPINAL ADJUSTMENT The thinning of the disc is produced by interference withits nutrition as a result of a contracted condition of the liga-ments on both sides of the vertebrae which is brought aboutby reflex impulses from some diseased part of the body. Thedisc is thus affected not alone by the pressure thus occasioned,but also by reason of the interfere
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