Chiropractors, like other primary care providers, sometimes employ diagnostic imaging techniques such as X-rays and CT scans that rely on ionizing radiation.[156] Although there is no clear evidence for the practice, some chiropractors may still X-ray a patient several times a year.[6] Practice guidelines aim to reduce unnecessary radiation exposure,[156] which increases cancer risk in proportion to the amount of radiation received.[157] Research suggests that radiology instruction given at chiropractic schools worldwide seem to be evidence-based.[48] Although, there seems to be a disparity between some schools and available evidence regarding the aspect of radiography for patients with acute low back pain without an indication of a serious disease, which may contribute to chiropractic overuse of radiography for low back pain.[48]
Among people seeking back pain relief alternatives, most choose chiropractic treatment. About 22 million Americans visit chiropractors annually. Of these, 7.7 million, or 35%, are seeking relief from back pain from various causes, including accidents, sports injuries, and muscle strains. Other complaints include pain in the neck, arms, and legs, and headaches.
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