Acupuncture for chronic nonspecific low back pain.

The short version

Does acupuncture help chronic low back pain? A Cochrane systematic review — the reference standard for evidence synthesis in medicine — pooled 33 randomized controlled trials with 8,270 adults whose low back pain had lasted more than three months without an identifiable cause, and the answer depends entirely on what acupuncture is compared against. The trials, conducted across Europe, Asia, and the Americas, compared real acupuncture with three alternatives: sham needling (needles placed superficially or away from true acupuncture points), no treatment at all, and usual medical care such as medication and physiotherapy. Pain was measured on 0–100 scales, function with validated back-specific questionnaires like the Hannover Functional Ability Questionnaire, and the review graded how trustworthy each pooled result was using the GRADE framework. Against no treatment, acupuncture delivered a 20-point pain reduction (95% CI 16–25 — well past the roughly 15 points patients can actually feel) along with clear functional improvement. Against usual care, pain improved by about 10 points and physical quality of life rose measurably (4.2 points on the SF-12), though mental well-being did not change. Against sham needling, however, the advantage shrank to 9 points — a real but sub-clinical difference — and back function did not separate at all. Side effects were minor and no more frequent than with sham: needle-site pain, bruising, occasional bleeding, with no serious harms attributed to treatment. For the many people living with chronic low back pain, this review supports acupuncture as genuinely better than doing nothing and a reasonable, safe addition to routine care — while being honest that much of the measured benefit may ride on components shared with sham treatment, such as expectation, focused attention, and the treatment ritual itself. Trial quality was mixed, seven German studies contributed two-thirds of all participants, and the authors conclude the choice should ultimately weigh availability, cost, and personal preference.

Key findings

• This Cochrane review pooled 33 randomized trials with 8,270 adults to test acupuncture for chronic nonspecific low back pain (pain lasting over three months without an identifiable cause).
• Acupuncture clearly outperformed no treatment, with a 20-point pain reduction on a 100-point scale - beyond the roughly 15 points considered noticeable to patients - plus meaningful functional improvement.
• Against sham needling the advantage narrowed to 9 points, which is statistically real but below the clinical-importance threshold, and function did not improve beyond sham.
• Compared with usual medical care, acupuncture improved back function and physical quality of life in the short term, though pain relief fell short of clinical importance.
• Side effects were minor (needle-site pain, bruising) and no more common than with sham treatment, making safety a strength of the therapy.

Common questions