Effectiveness of Low-Level Laser Therapy in Patients with Discogenic Lumbar Radiculopathy: A Double-Blind Randomized Controlled Trial

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Wavelength</td><td class="align_center">830 nm (near infrared)</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Laser frequency</td><td class="align_center">5,000</td></tr><tr><td class="align_left">Power output</td><td class="align_center">100 mW</td></tr><tr><td class="align_left">Power density</td><td class="align_center">300 mW/cm<sup>2</sup> or 0.67 W/cm<sup>2</sup></td></tr><tr><td class="align_left">Energy</td><td class="align_center">3 J/point</td></tr><tr><td class="align_left">Energy density</td><td class="align_center">3 J/cm<sup>2</sup> on each point</td></tr><tr><td class="align_left">Number of points</td><td class="align_center">4</td></tr><tr><td class="align_left">Spot size</td><td class="align_center">1 cm</td></tr><tr><td class="align_left">Treatment time</td><td class="align_center">30 sec on each point</td></tr><tr><td class="align_left">Daily energy delivered</td><td class="align_center">12 J</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Characteristics of laser beams.</div>

Journal of Healthcare Engineering

tab2

Table 2

Table 2: Effectiveness of Low-Level Laser Therapy in Patients with Discogenic Lumbar Radiculopathy: A Double-Blind Randomized Controlled Trial 