Therapeutic Effects of Low-Level Laser Therapy on Pain and Disability of Patients with Failed Back Surgery Syndrome

This study intended to evaluate the effects of Low-Level Laser Therapy (LLLT) on Failed Back Surgery Syndrome (FBSS). FBSS refers to symptoms and disabilities which remain or occur after lumbar spinal surgery. Prevalent treatments for FBSS are based mostly on conservative management while LLLT has gained significant interest in the treatment of a wide variety of musculoskeletal disorders.

In the present study, the authors included 50 individuals with FBSS. Target points were determined by an ultrasonic study including bilateral L₂-L₃ through L₅-S₁ facet joints, sacroiliac joints, and the region immediately above bilateral supra crestal iliac bones representing cluneal nerves. LLLT was performed three times a week for 3 weeks. A near-infrared laser (wavelength 808 nm, power 500 mw) was used in continuous mode for laser therapy sessions. The Numeric Rating Scale (NRS) and Oswestry Disability Index (ODI) were registered before treatment and after last treatment session, 1 month and 6 months later, respectively.

NRS and ODI were significantly improved after treatment, as well as therapeutic effects, after 1 month and 6 months were also evident and comparison of the NRS and ODI showed significant difference.

LLLT has a positive impact on pain and disability in patients with FBSS.