The use of Bioptron light (polarized, polychromatic, non-coherent) therapy for the treatment of acute ankle sprains

Purpose: The purpose of this study was to investigate the efficacy of Bioptron light therapy for the treatment of acute ankle sprains.
Method: A parallel group, single-blind, controlled study was carried out in patients with grade II acute ankle sprains. Patients were randomly allocated into two treatment groups (n¼25 for each). Both groups received cryotherapy, and the test group also received Bioptron light therapy. All treatments were performed daily for 5 d. Evaluations included self-reported pain via a visual analogue scale, degree of ankle edema, and ankle range of motion via goniometry carried out before the treatment and at the end of the treatment.
Results: The test group showed the largest magnitude of improvement for all evaluations at treatment five, and the between-group differences observed were statistically significant (p50.0005 for each).
Conclusions: These data provide preliminary evidence of the efficacy of Bioptron light therapy supplemented with cryotherapy for the treatment of acute ankle sprains; however, larger studies are required to confirm these results.