Class IV Laser; State-of-the Art Pain Relief

Therapeutic laser is rapidly becoming one of the most frequently used tools in the treatment of musculoskeletal pain. It’s deep penetrating near infrared beam ( at wavelengths of between 630nm-980nm) reaches far deeper than conventional therapeutic ultrasound or electrical stimulation. The physiologic action of laser, or photobiomodulation is a combination of four mecha-nisms: 1) biochemical, 2) thermal, 3) bioelectric, and 4) bioenergetic. Absorption of photons by the major chromophores; hemoglobin and melanin results in stimu-lation of mitochondria. Additionally there is activa-tion of fibroblasts, macro-phages, and lymphocytes. Release of growth factor, nitric oxide, and generation of reactive oxygen species, ATP production, increased collagen synthesis, in-creased membrane permea-bility, and DNA/RNA syn-thesis, are just a few of the effects on target tissue. The resultant clinical effects of laser photobiomodulation are as follows: reduction of spasm, vasodilation, angio-genesis, improved wound healing and contraction, muscle and ligament heal-ing, improved neurological function, pain reduction, improved lymphatic drain-age, improved tissue flexi-bility, and faster recovery from acute injury.

Clinical Studies: Laser Therapy In Treatment Of Incomplete Peripheral Nerve Injuries

A clinical double-blind placebo-controlled randomized study by the Departments of Neurosurgery and Neurology, Rehabilita-tion and Physiotherapy, Tel Aviv Sourasky Medical Cen-ter, Israel was performed to evaluate the effectiveness of laser treatment as a non-invasive, low cost method of improving functional recovery of patients suffering from incomplete peripheral nerve and brachial plexus injuries. The study indicated that laser therapy enhances the recovery of injured nerve tissue. Ther-apeutic results showed an objective improvement in nerve function, leading to significant functional recovery. Researchers concluded that laser therapy may be useful in improving functional recovery from incomplete peripheral nerve and brachial plexus injuries.v