Efficacy and Mechanism of FSN Treatment for Senile Knee Osteoarthritis

Operation of the FSN will follow the KOA's Fu's Subcutaneous Needling Treatment Code of Practice24. After routine disinfection, a disposable Fu's subcutaneous needle ( Nanjing-Paifu Medical Technology Co., Ltd., Jiangsu, China ) is inserted parallel into the subcutaneous loose connective tissue of the pathological tight muscles ( gastrocnemius muscle, tibial anterior muscle and quadriceps femoris muscle ). The FSN needle is operated in a swaying movement. The fan angle is approximately 60°; perform a total of 45 round trips in 30 seconds. Swaying is accompanied by reperfusion approach: 20 sweeps with 10 seconds of reperfusion approach as a group, 3 groups for each pathological tight muscle. The reperfusion approach requires active, short and sharp contractions of the pathological tight muscle. The muscle alternates contraction and relaxation. The FSN group is treated 3 times a week for 2 weeks.

Participants in the drug group will receive celecoxib (capsule) 200mg every day continuously for 2 weeks.