RESULTS
excessive head movement, Knee osteoarthritis knee pain, KOA knee pain
Knee osteoarthritis knee pain patients 180 were recruited, and 31 patients did not complete the study or had excessive head movement. This trial included 41 HCs of the matched age and gender; however, five HCs could not enroll in the MRI scan because of schedule issues. Therefore, 149 KOA knee pain patients and 36 matched HCs were involved in the final analyses (Figure Study flow chart. HCs, healthy controls; PB, placebo group; SA, sham acupuncture group; SC, celecoxib group; VA, verum acupuncture group; WL, waiting list group.