Effect of acupoint application of Zhanjin Huoxue formula combined with local cold compress on swelling and pain after knee arthroscopy in patients with knee osteoarthritis

Abstract

To compare the effect between acupoint application of Zhanjin Huoxue formula combined with local cold compress and simple local cold compress on swelling and pain after knee arthroscopy in patients with knee osteoarthritis (KOA). A total of 62 KOA patients with knee swelling after knee arthroscopy were randomly divided into an observation group and a control group, 31 cases in each group. In the control group, cold compress was adopted after surgery, 3 times a day. On the basis of the treatment as the control group, acupoint application of Zhanjin Huoxue formula (angelicae sinensis radix, chuanxiong rhizome, cinnamon twig, poria, etc.) was applied at Liangqiu (ST 34), Xuehai (SP 10), Zusanli (ST 36), Fenglong (ST 40), Sanyinjiao (SP 6), Yinlingquan (SP 9), Yanglingquan (GB 34), Xuanzhong (GB 39) on the affected side in the observation group, 4 h each time, 2 times a day. The treatment was given 7 days in both groups. Before treatment and 1,3,5 and 7 days into treatment, the pain visual analogue scale (VAS) score and swelling value of knee joint (2 cm above the patella upper pole, patella midline, 5 cm below the patella lower pole) were compared in the two groups. The VAS scores 3, 5 and 7 days into treatment were lower than those before treatment in the two groups (P<0.05), and those in the observation group were lower than the control group (P<0.05). The swelling values of 2 cm above the patella upper pole 3, 5 and 7 days into treatment were lower those before treatment in the two groups (P<0.05), and those in the observation group were lower than the control group (P<0.05). The swelling values of patella midline 1, 3, 5 and 7 days into treatment were lower than those before treatment in the two groups (P<0.05), and except for 1 day into treatment, those in the observation group were lower than the control group (P<0.05). The swelling values of 5 cm below the patella lower pole 1 day into treatment in the observation group and 3, 5 and 7 days into treatment in the two groups were lower those before treatment (P<0.05), and except for 1 day into treatment, those in the observation group were lower than the control group (P<0.05). The total effective rate in the observation group was 93.5% (29/31), which was higher than 74.2% (23/31) in the control group (P<0.05). Acupoint application of Zhanjin Huoxue formula combined with cold compress could effectively improve the knee joint swelling and pain after arthroscopy in KOA patients, and the curative effect is better than simple cold compress.