This section is from the "Nature Cure: Philosophy and Practice Based on the Unity of Disease and Cure" book, by Henry Lindlahr.
The "connective tissue doctrine of disease" was first proclaimed by Dr. Oakley Smith in 1907. It may be briefly stated as follows: A vertebra does not become misplaced without being fractured or completely dislocated. What is called a bony lesion by the osteopath and a subluxation by the chiropractor, is in reality a "ligatight," that is, a shrunken condition of the connective tissue forming the various ligaments that bind the vertebrae together.
Ligatights are best "corrected" by means of naprapathic "directos." These differ from chiropractic thrusts in that they aim not at adjusting subluxated vertebrae but at stretching definite strands of shrunken connective tissue. Ligatights occur not only in the spine but also in other parts of the body.