Efficacy of high-intensity laser therapy for the management of pain in patients with knee osteoarthritis: A comprehensive review

Abstract

Knee osteoarthritis (KOA) is a major health problem, affecting nearly one-third of individuals aged 65 years and older, with pain being the primary cause of disability. Laser therapy is commonly included in treatment programs and is delivered in two forms: low-level laser therapy (LLLT) and high-intensity laser therapy (HILT). The present study was conducted with the objectives to review recent literature on the efficacy of HILT in managing pain among patients with KOA. Of the 36 full-text articles assessed for eligibility, 20 were selected for critical comparison and analysis. Evaluation of published research indicated that HILT produces rapid, cumulative, and long-term analgesic effects. When compared with sham treatment, LLLT, or other combined therapeutic modalities, HILT showed significantly superior outcomes in pain reduction and improvement in function. It can therefore be concluded that HILT is effective in decreasing pain and disability and enhancing functional performance, surpassing LLLT and several other physical therapy combinations.