Electroacupuncture versus Exercise in Patients with Knee Osteoarthritis: a Randomized Controlled Trial

INTERVENTION: exercise group:exercise treatment;electroacupuncture group:electroacupuncture; CONDITION: FA01(ICD‐11) Osteoarthritis of knee PRIMARY OUTCOME: changes in numerical rating scale;Osteoarthritis Outcome Score (KOOS) Function in daily living (ADL); SECONDARY OUTCOME: patient's global assessment (PGA);Knee injury and Osteoarthritis Outcome Score (KOOS) Pain;KOOS knee‐related Quality of Life (QOL);Credibility/Expectancy Questionnaire;30‐second Chair Stand Test (30s‐CST);40m (4x10m) Fast Paced Walk Test (40m FPWT);Daily Physical Activity level (DPA);Short Form 6 Dimensions (SF‐6D);Five‐level EuroQol five‐dimensional questionaire (EQ‐5D‐5L);rescue medicine;adverse event; INCLUSION CRITERIA: Patients will be eligible if they : (I) aged 45‐75, any gender; (2) meet the American College of Rheumatology (ACR) diagnostic criteria of KOA; (3) have knee pain for more than 3 month; (4) have radiological examination within 6 months indicating II or III in Kellgren‐Lawrence grade with medial more than lateral tibiofemoral osteoarthritis in at least one knee; (5) score 4 or greater in numerical rating scale (NRS) during flat walking for the past week; (6) are willing to sign the informed consent.