Comparison of the Effectiveness of High-Intensity and Low-Intensity Laser Therapies in Primary Knee Osteoarthritis

Inclusion Criteria: * Age range of 55-75 years * Primary knee OA diagnosis according to ACR (American College of Rheumatology) and Knee OA classified as stage 2-3 according to the KL (Kellgren-Lawrence) radiological classification * Visual pain score of 4 or higher for knee pain lasting for at least 3 months Exclusion Criteria: * Patients with secondary knee OA * Patients who have undergone surgical operations related to the knee joint * Patients with pathology in the hip and/or ankle on the same side * Patients who have received intra-articular corticosteroid, hyaluronic acid, or PRP injections in the knee joint in the last 6 months * Patients who have received physical therapy for the knee region in the last 6 months * Patients with serious systemic diseases such as malignancy, congestive heart failure, or chronic obstructive pulmonary disease * Patients with insufficient cognitive function