Lasers in surgery and medicine
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Randomized Controlled Trial Comparative Study Clinical Trial
Efficacy of low power laser therapy and exercise on pain and functions in chronic low back pain.
The aim of this study was to determine whether low power laser therapy (Gallium-Arsenide) is useful or not for the therapy of chronic low back pain (LBP). ⋯ Low power laser therapy seemed to be an effective method in reducing pain and functional disability in the therapy of chronic LBP.
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Randomized Controlled Trial Comparative Study Clinical Trial
Efficacy of different therapy regimes of low-power laser in painful osteoarthritis of the knee: a double-blind and randomized-controlled trial.
A prospective, double-blind, randomized, and controlled trial was conducted in patients with knee osteoarthritis (OA) to evaluate the efficacy of infrared low-power Gallium-Arsenide (Ga-As) laser therapy (LPLT) and compared two different laser therapy regimes. ⋯ Our study demonstrated that applications of LPLT in different dose and duration have not affected results and both therapy regimes were a safe and effective method in treatment of knee OA.
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Randomized Controlled Trial Clinical Trial
Effects of linearly polarized 0.6-1.6 microM irradiation on stellate ganglion function in normal subjects and people with complex regional pain (CRPS I).
Stellate ganglion blocks are an effective but invasive treatment of upper extremity pain. Linearly polarized red and near-infrared (IR) light is promoted as a safe alternative to this procedure, but its effects are poorly established. This study was designed to assess the physiological effects of this latter approach and to quantitate its benefits in people with upper extremity pain due to Complex Regional Pain Syndrome I (CRPS I, RSD). ⋯ Irradiation is well tolerated. There is a suggestion in this small study that treatment is beneficial and that its benefits are not dependent on changes in sympathetic tone. Further evaluation is warranted.