Cold Laser Therapy or Low-Level Laser Therapy (LLLT), is an alternative functional medicine treatment that utilizes specific wavelengths of light to interact with tissue and helps accelerate the healing process. It can be used on patients who suffer from a variety of acute and chronic conditions in order to help eliminate pain, swelling, reduce spasms and increase functionality.
How do Cold Lasers work?
Cold lasers are handheld devices which are placed directly over the injured area for 30 seconds to several minutes, depending on the size of the area being treated and the dose provided by the cold laser unit.
During this time, the non-thermal photons of light that are emitted from the laser pass through the skin’s layers (the dermis, epidermis, and the subcutaneous tissue or tissue fat under the skin). This light has the ability to penetrate 2 to 5 centimeters below the skin at 90mw and 830 nm.
Once the light energy passes through the layers of skin and reaches the target area, it is absorbed and interacts with the light-sensitive elements in the cell. This process can be compared to photosynthesis in plants – sunlight is absorbed by plants, which is then converted to usable energy so that the plant can grow.
When cells absorb this light energy, it initiates a series of events in the cell that is theorized to eventually result in normalizing damaged or injured tissue, a reduction in pain, inflammation, edema and an overall reduction in healing time by increasing intracellular metabolism.
Cold laser therapy can stimulate all cell types including muscle, ligament, cartilage, nerves, etc., so a number of conditions can be treated by cold laser therapy. Some of the conditions that may typically be treated by cold laser therapy include:
- Arthritis pain
- Back pain
- Carpal tunnel syndrome
- Fibromyalgia pain
- Fractures
- Injuries
- Knee pain
- Neck pain
- Neurological conditions
- Tendonitis
- Pain Syndromes
How Effective is Cold Laser Therapy?
For years, physicians have been using cold laser therapy on patients who are seeking effective, alternative methods for pain relief. Since 1967 there have been over 2,500 clinical studies published worldwide. Many of these studies are double-blinded, placebo-controlled and have demonstrated cold laser therapy to be a proven method for pain relief.
The effectiveness of cold laser therapy for neck pain was recently reviewed by The Bone and Joint Decade 2000-2010 Task Force on Neck Pain, an initiative conducted by a multidisciplinary team of researchers and clinicians.
The task force concluded that low-level laser therapy can be a beneficial treatment for certain types of neck pain, including types of pain that cause little or no interference with daily activities and pain the does limit daily activities, as compared to pain that includes radiculopathy (arm pain) or serious pathology.