Class IV Laser Therapy
What Is Class IV Laser Therapy?
Class IV laser therapy is an advanced, medical-grade form of light therapy used to treat pain, inflammation, and deep-tissue injury. At our practice, we use MLS® (Multiwave Locked System) laser therapy, a highly refined Class IV laser specifically designed for orthopedic and sports-medicine conditions. Unlike lower-power lasers, Class IV MLS laser delivers therapeutic light energy deep into muscles, tendons, ligaments, joints, and nerves—where many musculoskeletal problems actually originate.
Photobiomodulation: How Light Helps the Body Heal
Laser therapy is often referred to as photobiomodulation, which simply means using light energy to positively influence biologic processes. Most people understand that plants rely on light for photosynthesis. Humans also depend on light energy, but in a different way. When targeted therapeutic light reaches injured tissue, it stimulates cellular activity that supports healing, pain reduction, and recovery.
Why MLS Laser Is Different From Red Light Therapy
You may have heard of “red light therapy” devices sold for home or spa use. These typically use very low-power light that penetrates only a few millimeters into the skin. Class IV MLS laser therapy is fundamentally different. MLS laser penetrates deep into musculoskeletal tissues, allowing it to reach muscles, tendons, ligaments, joints, and nerves—structures that superficial red light simply cannot affect. This depth of penetration is essential for treating true orthopedic conditions rather than just the skin.
The Two Wavelength Advantage of MLS Laser
MLS laser therapy is unique because it uses two synchronized wavelengths of light, each serving a distinct therapeutic purpose.
One wavelength, 808 nm, is primarily responsible for pain relief. It helps calm irritated nerve fibers and reduces pain signaling, providing an analgesic effect.
The second wavelength, 905 nm, targets inflammation and swelling. It has powerful anti-edema and anti-inflammatory effects, helping tissues recover more efficiently after injury or strain.
By combining these two wavelengths together, the MLS laser delivers a more comprehensive and balanced treatment than single-wavelength systems.
Recharging the Cell’s “Batteries”: The Role of Mitochondria
Inside every cell in the body are tiny structures called mitochondria, often described as the cell’s “power plants” or “little batteries.” MLS laser therapy stimulates mitochondrial activity, helping cells produce more usable energy (ATP). This boost in cellular energy supports tissue repair, improves circulation, and accelerates recovery. In simple terms, MLS laser helps tired or injured cells work better and heal faster.
Beneficial Effects on Nerves and Neuropathy
MLS laser therapy has particularly important effects on nervous tissue. By improving cellular energy, circulation, and reducing inflammation around nerves, MLS laser can help calm irritated or compressed nerves. This makes it a valuable tool in treating musculoskeletal-related neuropathic symptoms, such as nerve pain, tingling, or sensitivity associated with conditions affecting the spine or extremities. For many patients, this nerve-focused benefit is one of the most noticeable improvements.
Conditions We Treat With Class IV MLS Laser
Class IV MLS laser therapy can be used across a wide range of musculoskeletal conditions, including muscle strains, tendon injuries, ligament sprains, joint pain, arthritis, bursitis, overuse injuries, and nerve-related pain arising from orthopedic causes. It can be applied to virtually all regions of the musculoskeletal system, including the neck, back, shoulder, elbow, wrist, hip, knee, ankle, and foot.
A Versatile Tool Within a Comprehensive Orthopedic Practice
As a full-scope orthopedic and sports-medicine practice, we embrace all effective treatment modalities, from non-invasive therapies to regenerative medicine and surgery. Our philosophy is to use the least invasive approach that can reliably achieve the desired result. In some cases, MLS laser therapy on its own can provide meaningful relief and help patients avoid more invasive interventions. In other situations, it plays an important adjunctive role, enhancing healing after regenerative injections or surgical procedures.
Synergy With Shockwave, Regenerative Treatments, and Surgery
MLS laser therapy is commonly combined with other treatments for greater effect. We frequently pair it with shockwave therapy for synergistic pain-relief and tissue-healing benefits. It is also often integrated into regenerative injection programs and post-operative recovery plans to reduce inflammation, support tissue repair, and optimize outcomes.
Safe, Non-Invasive, and Highly Effective
Class IV MLS laser therapy is a non-invasive, very safe, and comfortable treatment that requires no downtime. Sessions are quick, and many patients notice progressive improvement over a series of treatments. Its versatility and safety profile make it a valuable option for a wide variety of musculoskeletal conditions, whether used alone or as part of a comprehensive, personalized treatment plan.
At MOSM, MLS laser therapy is a powerful, evidence-based tool we frequently integrate into orthopedic care to help patients heal, move better, and return to the activities they value most.
