According to a recent literature review evaluating the effectiveness of chiropractic spinal manipulation for the treatment of chronic neck pain (neck pain lasting 8 or more weeks), chiropractic spinal manipulation is extremely beneficial for many forms of chronic neck pain. According to researchers, they found "high-quality evidence" that spinal manipulation provided significant pain-level improvements on those suffering from chronic neck pain. Researchers concluded that there was moderate to high quality evidence that subjects with chronic neck pain showed clinically important improvements from a course of chiropractic spinal manipulation at 6, 12 and up to 104 weeks post-treatment. They also added that current evidence did not support a similar level of benefit from massage.
Source: JMPT. March 2007; Vol. 30, Issue 3.