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Description for medicine or protocol of treatment in detail：
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Acupuncture treatment:
1) Acupuncture treatment was conducted by inserting needles into essential acupoints and additional acupoints as appropriate. The essential acupoints included six acupoints which were Ashi, Xuehai, Liangqiu, Yanglingquan, Xiyan, and Dashu. additional acupoints depended on that if Participants were differentiated as Qizhixueyu type then acupoint selection was Geyu, and if Hanshizubi type then Yanglingquan and Zusanli.
2) According to various acupoints, we decided the patient's postures differently Sitting, supine or lateral.
3) Locating acupoints: According to the measurement of Chinese medicine (measured by the unit of Cun, one Cun was about two centimeters), the corresponding acupoints were located by the acupuncturist.
4) Disinfection: the acupuncturist hand was disinfected by washing soap water firstly and wiping fingers with 75% alcohol. disinfection of participates' acupoint site was also used by 75% alcohol with wiping from center to outward.
5) Hwato brand disposable acupuncture needles (size 0.30 x 75 mm) was used. Needle insertion followed an angle of 90°in an inferomedial direction acupoints. Following needle insertion, small, equal manipulations of twirling, lifting and thrusting were performed on all needles to reach de qi (a composite of sensations including soreness, numbness, distention, heaviness, and other sensations), which is believed to be an essential component for acupuncture efficacy.
6) Frequency: once/day, four times/week, total treatment time was 3 weeks.
Herbal fumigation:
1) Herbal prescription: Qizhixueyu type (Honghua 12g, Chuanqiong 15g, Chishao 15g, Guizhi 10g, Xixin 6g, Weilinxian 20g, Liujinu 20g, Aiye 30g, Huajiao 15g). Hanshibizu type (Zhichuanwu 10g, Zhicaowu 10g, Weilinxian 20g, Xixin 6g, Aiye 30g, Huajiao 15g, Tougucao 15g, Haitongpi 15g, Duhuo 12g, Qianghuo 12g, Ganjiang 12g, Cangzhu 12g).
2) Medicine Preparation: First, wrap all the medicinal gauze in the medicine pot, soak it for 15 minutes, then boil it with the fire till it boils, then change the fire to the gentle fire for another 20 minutes after 5 minutes, add another 100 ml vinegar from the fire, pour the above medicine solution into the medicine bath barrel, and heat the water for 1500 ml for standby. The above preparation process is operated by the same person.
3) Body position: ask the subject to put the knee on the medicine bath bucket and use the steam to fumigate first. When the subject does not burn the skin consciously, wash the part directly in the medicine bath bucket.
4) Frequency: once(40 minutes)/day, four times/week, total treatment time was 3 weeks.
Traditional Chinese medicine wax therapy:
Wax cake preparation: First, melt the solid paraffin with the constant temperature wax therapy instrument, then cool and condense the paraffin into a cake (surface 45-50 degrees C) with a special wax pan, the thickness of which is 3-4cm, and then pack the cut soft paraffin with a tarpaulin.
Preparation of liquid of herbal: Qizhixueyu type (Weilinxian 20g, Tubiechong 10g, Xuejie 15g, Tougucao 15g, Sanlin 15g, Xixin 6g, Zhichuanwu 10g, Zhicaowu 19g, Bingpian 10g, Huajiao 15g). Hanshibizu type (Duhuo 15g, Niuxi 12g, Fangji 15g, Zhicaowu 10g, Ganjiang 6g, Mahuang 6g, Xixin 6g, Guizhi 15g). The above drugs were soaked with 75% alcohol for one week, and the upper layer of the soaking solution was used for patients. After syndrome differentiation and treatment, select the appropriate prescription for patients to decoct, cool to about 45 degrees C, and then leave it for use.
Body position: The subjects took a comfortable position, exposed the treatment site, evenly applied the liquid containing traditional Chinese medicine around the knee joint, and then applied the wax cake covered with a tarpaulin on the treatment site, Try to ensure that the wax cake can fully contact the treatment part, wrap it with heat preservation cotton cloth to prevent heat dissipation; then tie the wax block and the affected part with an elastic bandage; take it off 20 minutes later, and return the wax to the heat preservation box for cleaning and disinfection before standby. During the treatment, pay attention to the temperature of wax cake to prevent scalding.
6) Frequency: once (40 minutes)/day, four times/week, total treatment time was 3 weeks.
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Exclusion criteria：
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1) Other inflammatory and painful diseases of the knee joint: rheumatism / rheumatoid arthritis, psoriasis arthritis, gout, hemophilic arthritis, infectious arthritis, etc.
2) Pain injury of knee joint other than osteoarthritis of the knee, such as an intraarticular tumor, villonodular synovitis, acute joint trauma (meniscus tear, ligament injury, bone cartilage contusion, and fracture), etc.
3) Pregnant and lactating women.
4) There are severe cardio cerebral vessels (cerebral infarction and sequelae in recent 6 months, myocardial infarction in recent 6 months), liver (alt, AST are the upper limit of normal value 2 Patients with multiple or above), kidney disease (patients with blood creatinine exceeding the upper limit of normal value), diabetes mellitus requiring insulin injection or poor blood glucose control (fasting blood glucose >= 10mmol / L), coagulation dysfunction (thrombocytopenia, hemophilia, etc.).
5) Patients with skin defects or ulcers around the affected knee joint.
6) The deformity of genu varus > 10 degrees, genu valgus > 20 degrees and joint space disappeared.
7) Patients who have taken glucocorticoids or participated in clinical trials of other drugs within one month before this trial.
8) The patients who were treated in the first 3 months of this trial included intra-articular medication, intra-articular irrigation, and arthroscopic surgery.
9) People who are known to be allergic to the drug components related to this test.
10) Other subjects judged by the researchers were not suitable for inclusion.
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