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We don't know whether it does more good than harm
| The first 150 words of the full text of this article appear below. |
Chiropractic includes various techniques used in the hope of correcting vertebral disc displacements, freeing spinal joint adhesion, inhibiting nociceptive impulses, or correcting spinal misalignment. Several national guidelines on the treatment of low back pain recommend spinal manipulation, including chiropractic, as a symptomatic treatment for acute uncomplicated cases where pain fails to resolve spontaneously within the first months.1 How solidly are these recommendations based on evidence?
There are many controlled trials of spinal manipulation and no fewer
than 51 reviews.2 Surprisingly, in the review of Shekelle
et al,3 which provided the basis for the recommendations
mentioned above, the subset of randomised clinical trials on acute low
back pain which generated these favourable recommendations did not
contain one single trial of chiropractic. A recent systematic review
restricted to chiropractic manipulation included only eight randomised
controlled trials, all of which were methodologically flawed and
"did not provide convincing evidence for the effectiveness of
chiropractic
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