Knee osteoarthritis (KOA) is characterized by a gradual wearing away of the cartilage in the joint through strain
originating from weight bearing, repeated injury, and/or damage and is one of the most associated causes of knee pain. Current options for pain management include medication or surgery. Consequently patients are alternatively seeking a non-invasive approach that can help manage their pain. Recently, Class IV laser has gained popularity due to its clinical efficacy in pain management and non-invasive application.