When acupuncture was added to the treatment of elderly arthritis patients with knee pain due to arthritis, their condition improved significantly, The University of Maryland reported.. The randomized clinical trial, performed at the University of Maryland School of Medicine, determined whether acupuncture was a clinically safe and effective therapy for older patients with osteoarthritis of the knee. The study addressed these questions: Would the addition of acupuncture to conventional therapy produce an added measure of pain relief? Would the effects of acupuncture last for 4 weeks following the end of treatment? Would acupuncture have any side effects? Patients who received acupuncture had significant pain relief and showed improvement in function. Those who did not receive acupuncture showed no significant change. No patients reported side effects from any acupuncture therapy session.