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KMID : 0948920150140020057
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Clinical Pain
2015 Volume.14 No. 2 p.57 ~ p.61
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Clinical Use and Limitation of CO2 Laser in Patients with Musculoskeletal Pain
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Lee Sang-Yoon
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Abstract
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It has been reported that low level laser therapy (LLLT) can be beneficial to the musculoskeletal (MSK) pain relief. A CO2 laser therapy as a kind of LLLT has been also used to treat the MSK pain. However, the CO2 laser has thermal and ablative effects which are not suitable for the analgesic effect while the therapeutic mechanism of another kinds of LLLT has been known as the bio-stimulation by laser irradiation. Although a few clinical trials have investigated the efficacy of the CO2 laser in the MSK pains, the pure effect of the CO2 laser was not ascertainable because complex laser therapy (CO2 laser combined with another LLLTs) have been used in these studies. Even at meta-analyses of LLLT in the MSK pain, any study with the CO2 laser could not be selected as the trials with internal validity. Besides, a thermal effect of the CO2 laser could be harmful to the irradiated tissues in contrast to another kinds of LLLT. Therefore, when we reviewed the papers about the CO2 laser in the MSK pain relief, the evidence of treatment effect was not enough and a sufficient studies about the CO2 laser safety should be required prior to its clinical applications.
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KEYWORD
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Laser therapy, Gas lasers, Musculoskeletal pain, Physical therapy modalities
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