Low Level Laser Therapy for Knee Pain

Overview
Low Level Laser Therapy (LLLT) uses a specific type of light energy (photons) to produce biochemical changes, including reducing pain and swelling. A recent review of multiple studies demonstrate it is effective at certain settings for osteoarthritis.
Source:
Stausholm MB, Naterstad IF, Joensen J, et al. Efficacy of low-level laser therapy on pain and disability in knee osteoarthritis: systematic review and meta-analysis of randomised placebo-controlled trials.BMJ Open 2019;9:e031142.
RESCU Treatment Ratings
R = Risk E = Effectiveness S = Self-Care
C = Cost U = Usefulness (overall rating)
1 = Least Favorable 5 = Most Favorable
RISK: 5/5
Low-Level Laser Therapy (LLLT) has been shown to be safe at designated doses and appears to have side effects similar to placebo (“sugar pill”) treatments.
Source:
Tuby H1, Hertzberg E, Maltz L, Oron U. Long-term safety of low-level laser therapy at different power densities and single or multiple applications to the bone marrow in mice. Photomed Laser Surg. 2013 Jun;31(6):269-73. doi: 10.1089/pho.2012.3395. Epub 2013 May 15.
Jimenez JJ1, Wikramanayake TC, Bergfeld W, Hordinsky M, Hickman JG, Hamblin MR, Schachner LA., Efficacy and safety of a low-level laser device in the treatment of male and female pattern hair loss: a multicenter, randomized, sham device-controlled, double-blind study. Am J Clin Dermatol. 2014 Apr;15(2):115-27. doi: 10.1007/s40257-013-0060-6.