Carpal tunnel syndrome (CTS) is a condition causing tingling, numbness and pain in the hands. Although there are a several conservative treatments available, many patients ultimately require surgery for the relief of symptoms. Advancements in technology now offer low-level laser therapy as a promising alternative to traditional treatment of CTS.
Significance
Low-level laser therapy (LLLT), also called cold laser therapy, has been used worldwide for approximately 30 years and in the U.S. for the past 10 years. Lasers have been used to remove unwanted hair, wrinkles and scars and to treat a number of medical conditions. Because cold lasers are absorbed by skin, tendons, muscles and nerves, it is theorized that LLLT may decrease the pain and inflammation associated with carpal tunnel syndrome.
Function
Low-level lasers use between 5 to 500 milli-watts of power, compared to surgical lasers that use around 300 watts. Traditional hot lasers can destroy tissue, but cold lasers use a "red beam" that can penetrate up to 2 inches into the skin with no damage. In fact, it is believed that this type of light therapy has a "photobiostimulative" effect, similar to photosynthesis in plants. Scientists suggest that the cold lasers produce photochemical reactions that increase cellular metabolism, thus improving cellular repair. This enhances the body's natural healing process while increasing circulation and possibly decreasing inflammation.
Procedure
LLLT is a simple non-invasive procedure in which the laser is applied to four areas of the wrist for approximately 30 seconds each. This is repeated three times, with the entire treatment lasting approximately six minutes. Regimen for therapy suggests three office visits per week for at least five weeks. The laser causes no pain or sensation, and there are no side effects. Over 3,000 studies worldwide have proven this form of treatment to be completely safe.
Effectiveness
Because low-level laser therapy is still a somewhat new procedure in the treatment of carpal tunnel syndrome, it's effectiveness is debatable. One study showed an increase in pinch and grip strength after treatment, but no significant pain relief, while other studies show that 80 percent of LLLT patients had marked relief of symptoms. Currently, there is no conclusive evidence to support claims that cold laser therapy can reduce or eliminate pain. However, it is known that patients with mild to moderate CTS obtain better results than those with severe CTS.
Considerations
People with mild or moderate symptoms of CTS may benefit from cold laser therapy, especially if used in conjunction with other conservative approaches, such as wrist splints, corticosteroid shots and anti-inflammatory medications. Treatment can be very time consuming, however, and facilities providing these services may be hard to find in your area. Each session typically costs around $50 and can become costly over time. Many insurance companies consider it to be an alternative treatment and may not cover any portion of the expense. If you are interested in pursuing this form of therapy, look for clinical research trials in your area.
Tags: laser therapy, cold laser, cold laser therapy, cold lasers, tunnel syndrome