To investigate effects of repetitive peripheral magnetic stimulation (PMS) on pain reduction in knee osteoarthritis

Inclusion Criteria:

• Primary knee osteoarthritis patients who have had knee pain for at least 6 months and age more than 50 years, had morning stiffness not more than 30 minutes or crepitation.
• Kellgren and Lawrence classification 2-4
• Visual analog scale of pain 4 or higher.

Exclusion Criteria:

• Patients with other musculoskeletal problems associated with knee joint
• Patient with history of physical therapy in past 1 month
• Patient with pacemaker, cochlear implant or cerebral shunt
• Patient with history of knee surgery
• Patient with neurological or other severe disease
• Patient with previous seizure.