[troutman]

This blog is a devastating summary on chiro criticism (written by a former chiro):

http://www.sciencebasedmedicine.org/...y-of-concerns/

There is no credible evidence to support use of spinal manipulation for anything other than uncomplicated mechanical-type back pain and related neuromusculoskeletal problems. There is no evidence at all to support chiropractic subluxation theory. It has never been demonstrated that a real orthopedic subluxation or a pinched spinal nerve can affect general health or that an undetectable “vertebral subluxation complex” can cause organic problems.14 If you are looking for a chiropractor who offers spinal manipulation as an option in the treatment of back pain, look for one who does not subscribe to subluxation theory ─ one who is willing to exchange office notes with your family physician. Remember that most of the time, acute low-back pain is a self-limiting condition that will resolve in four to six weeks, with or without treatment. Appropriate treatment can, however, relieve symptoms and speed recovery. When back pain grows progressively worse, persists unrelieved for longer than a week, or is worsened by rest, there may be cause for alarm. Chiropractic care should not be continued for longer than two to four weeks if there is no measured improvement. A correct diagnosis is essential when considering treatment options. Treatment based on correction of an alleged chiropractic vertebral subluxation complex may result in unnecessary chiropractic adjustments for nonexistent or unrelated problems, delaying appropriate treatment based on a correct diagnosis. I don’t know of any reason to manipulate the immature, cartilaginous spine of a neonate or an infant as some pediatric chiropractors are doing.15