Observation on the Clinical Efficacy of Electroacupuncture Combined with Gradient Pulse Infrared Therapy in the Treatment of Early Knee Osteoarthritis

INTERVENTION: Electroacupuncture group:Electroacupuncture;Gradient pulse infrared therapy group:Gradient pulse infrared therapy;Combined treatment group:Electroacupuncture and gradient pulse infrared therapy; CONDITION: Early knee osteoarthritis PRIMARY OUTCOME: Knee injury and osteoarthritis score (KOOS); SECONDARY OUTCOME: The cartilage morphology score and bone marrow edema score in the Whole‐Organ Magnetic Resonance Imaging Score (WORMS); INCLUSION CRITERIA: (1) Those meeting the diagnostic criteria for early knee osteoarthritis as stipulated in the "Guidelines for Diagnosis and Non‐surgical Treatment of Early Knee Osteoarthritis (2024 Edition)" are: 1) Age = 40 years old; 2) Repeated knee pain for more than 1 month; 3) Joint stiffness = 30 minutes, pain when squatting and standing up, pain when going up and down stairs; 4) Bone friction sounds (feels) during movement, joint space tenderness; 5) X‐ray shows no obvious changes in the joint, or there may be bone spurs, suspected narrowing of the joint space; 6) MRI shows localized or diffuse cartilage damage (the range of subchondral bone marrow edema in any area = 75%, or any range = 25%); (2) Gender is not restricted; (3) VAS score = 2 points and = 6 points. (4) The subjects understand, voluntarily participate in the study, and sign the "Informed Consent Form".