Efficacy of Low-Level Light Therapy for Treatment of Diabetic Foot Ulcer: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

•Management of DFU remains a major therapeutic challenge throughout the world.•LLLT is effective in promoting granulation, reducing ulcer area and improving healing rate.•LLLT is a cost-effective for DFUs, especially for Wagner ulcer classification I∼II.