Spinal manipulation works for back pain?but only for some

Spinal manipulation involves applying force to move joints as a way of treating pain. A new study shows that the technique works for some patients with low-back pain but not for others.

Depending on whom you ask or what scientific paper you read last, spinal manipulation is either a mercifully quick, effective treatment for low-back pain or a complete waste of time.

Researchers at the University of Alberta have found that spinal manipulation