Effect of Photobiomodulation on Healing of Venous Leg Ulcers

Venous leg ulcers are a significant public health problem because of their prolonged duration, high recurrence rates, and economic, social, and quality-of-life effects. Compression therapy is the standard treatment; however, healing may remain slow. Photobiomodulation is being investigated as an adjunctive treatment to promote tissue repair and wound healing. This prospective, randomized, controlled, double-blind clinical trial will evaluate the efficacy of photobiomodulation combined with compression therapy in the healing of lower-limb venous leg ulcers. A total of 102 participants will be randomly allocated in a 1:1 ratio to an Experimental Group (n=51), receiving active photobiomodulation plus compression therapy, or a Control Group (n=51), receiving sham photobiomodulation plus compression therapy. Treatment will be administered twice weekly on Mondays and Thursdays for 16 weeks, totaling 32 sessions. The primary outcome will be the percentage reduction in wound volume over 16 weeks, estimated from wound area and depth. Secondary outcomes will include percentage reduction in wound area, change in wound depth, complete wound healing, adverse events, wound quality assessed using the Bates-Jensen Wound Assessment Tool, pain intensity and rescue analgesic use, health-related quality of life assessed using the SF-36, clinical severity assessed using the Venous Clinical Severity Score, and direct treatment costs. Wound area will be measured using the ImitoWound® application.