Evaluating the Effectiveness of Using a Home Laser Device to Treat Patients With Knee Osteoarthritis

This double-blind randomized trial is testing whether a home-use near-infrared laser device (B-Cure Laser) — a type of photobiomodulation (light therapy) — can reduce pain and improve function in patients with knee osteoarthritis when used alongside standard care. Photobiomodulation has shown promise in easing inflammation and pain in knee osteoarthritis, and this study asks whether patients can effectively self-administer it at home. Adults with a confirmed knee osteoarthritis diagnosis, Kellgren-Lawrence grade 1–3, moderate-to-severe knee pain (40–90mm on a visual scale) for at least one month are eligible, while those with previous knee surgery, rheumatoid arthritis, neurological pain conditions, or active cancer are excluded. Participants will use either an active or a sham device at home and attend three clinic visits over three months for physical assessments and questionnaires about pain, function, and quality of life. This summary was prepared to help patients understand the study in plain language.