Lumbar jiaji points, Huantiao (GB 30), Yanglingquan (GB 34) and Chengshan (BL 57) were selected for the electroacupuncture group with a G 6805 electric stimulator used.

• 体针组取大肠俞、关元俞、秩边、环跳、承扶、阳陵泉、承山等穴,并观察治疗前后的疼痛和体征变化。