Class IV laser therapy is a non-invasive treatment that uses specific wavelengths of light to interact with deep tissues. Unlike lower power lasers used for superficial treatments, Class IV lasers deliver high levels of energy to stimulate healing and provide pain relief for musculoskeletal conditions.
The science behind laser therapy is a process called photobiomodulation. This process is similar to photosynthesis in plants but occurs within human cells.
Cellular Energy Production: The laser light penetrates deep into the tissue and is absorbed by the mitochondria. This triggers the production of adenosine triphosphate (ATP), which is the fuel cells need to repair themselves.
Increased Blood Flow: The light energy causes blood vessels to dilate, which increases circulation to the injured area. This brings in fresh oxygen and nutrients while helping to flush out metabolic waste and inflammatory markers.
Pain Signal Reduction: Laser therapy helps to decrease the sensitivity of nerve fibers, which can provide an immediate reduction in the perception of pain.
Swelling and Inflammation Reduction: By stimulating the lymphatic system, the laser helps to drain fluid from swollen areas, reducing pressure on the joints and nerves.
Because Class IV lasers can reach deep structures like hips, lower back discs, and thick tendons, they are used for a variety of orthopedic issues.
Tendon and Ligament Injuries: Including but not limited to achilles tendinitis, plantar fasciitis, rotator cuff tears, and lateral epicondylitis (tennis elbow).
Arthritis Pain: Patients with osteoarthritis in the knee, hip, or low back often use laser therapy to manage swelling and stiffness without the use of drugs.
Nerve Pain: It is frequently used to treat symptoms of carpal tunnel syndrome or peripheral neuropathy by reducing nerve inflammation.
Post-Surgical Recovery: Laser therapy can be applied to surgical incisions and surrounding tissues to speed up wound healing and reduce postoperative swelling.
Spine Conditions: It helps manage pain associated with herniated discs, sciatica, and chronic neck or lower back strain.
A typical session lasts between 5 and 10 minutes. Most patients feel a soothing, warm sensation as the laser probe is moved over the skin. Because the laser is high power, both the patient and the clinician must wear protective eyewear during the procedure. While some patients feel relief after a single visit, a series of treatments is usually required to achieve long-term tissue repair.