Acute Low Back Pain with Radiculopathy: A Double-Blind, Randomized, Placebo-Controlled Study

Authors: Konstantinovic LM1, Kanjuh ZM, Milovanovic AN, Cutovic MR, Djurovic AG, Savic VG, Dragin AS,Milovanovic ND.
Source: Photomed Laser Surg. 2010 Aug;28(4):553-60

Objective:

The aim of this study was to investigate the clinical effects of low-level laser therapy (LLLT) in patients with acute low back pain (LBP) with radiculopathy. Background Data: Acute LBP with radiculopathy is associ- ated with pain and disability and the important pathogenic role of inflammation. LLLT has shown significant anti- inflammatory effects in many studies. Materials and Methods: A randomized, double-blind, placebo-controlled trial was performed on 546 patients. Group A (182 patients) was treated with nimesulide 200 mg=day and ad- ditionally with active LLLT; group B (182 patients) was treated only with nimesulide; and group C (182 patients) was treated with nimesulide and placebo LLLT. LLLT was applied behind the involved spine segment using a stationary skin-contact method. Patients were treated 5 times weekly, for a total of 15 treatments, with the fol- lowing parameters: wavelength 904 nm; frequency 5000 Hz; 100-mW average diode power; power density of 20 mW=cm2 and dose of 3 J=cm2; treatment time 150 sec at whole doses of 12 J=cm2. The outcomes were pain intensity measured with a visual analog scale (VAS); lumbar movement, with a modified Schober test; pain disability, with Oswestry disability score; and quality of life, with a 12-item short-form health survey question- naire (SF-12). Subjects were evaluated before and after treatment. Statistical analyses were done with SPSS 11.5. Results: Statistically significant differences were found in all outcomes measured ( p < 0.001), but were larger in group A than in B ( p < 0.0005) and C ( p < 0.0005). The results in group C were better than in group B ( p < 0.0005). Conclusions: The results of this study show better improvement in acute LBP treated with LLLT used as additional therapy.

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