Umbilical acupuncture combined with warm needle acupuncture for the treatment of residual numbness after lumbar disc herniation surgery: a protocol of a randomized controlled trial
BackgroundPostoperative residual numbness following lumbar disc herniation (LDH) surgery is a relatively common symptom.Existing drugs and physical therapies are not very effective.Acupuncture is effective for the treatment of LDH, but there are limited reports on its use for postoperative numbness.Based on clinical observations and literature revi