Multicenter clinical study on the rules of moxibustion location of heat-sensitive moxibustion for treating Knee osteoarthritis

INTERVENTION: A:heat‐sensitive acupoint suspension moxibustion (treatment group) ;B:non heat‐sensitive acupoint suspension moxibustion (control group) ;C:western medicine (control group); CONDITION: knee osteoarthritis PRIMARY OUTCOME: Scales of special examination on pain, the relation between activity and pain, as well as dysfunction; INCLUSION CRITERIA: All having the following items be included in this study: 1. According with the former diagnostic criteria of knee osteoarthritis in western medicine and combined with knee arthrocele; 2. Negative floating patella test; 3. Integral value of the clinical symptom score>=5; 4. Age 38 to 70 years old, both male and female; 5. Patients are willing to accept the treatment methods of this topic provided; 6. Knee region (yinlingquan‐yanglingquan‐liangqiu‐xuehai composing of the region) appear heat‐sensitive point.