Treatment of diabetic foot ulcers in a frail population with severe co-morbidities using at-home photobiomodulation laser therapy: a double-blind, randomized, sham-controlled pilot clinical study

What the authors concluded

With the numbers available, PBM-treated group had significantly greater %reduction compared to sham (area [cm2], baseline vs endpoint: PBM 10 (...) cm2 vs 0.2 (...) cm2; sham, 7.9 (...) cm2 vs 4.6 (...) cm2, p = 0.018 by Mann-Whitney U test). " "Direct comparison of percent closure at the study termination showed a significant healing effect of active laser treatment over sham treatment (...) 97

Devices that emit this wavelength

Matched on wavelength within 15nm, since LED bins vary by roughly that much and a tighter match would be false precision. Where we have an irradiance figure, the session length is the time needed to reach this study's dose of 8.8 J/cm² at that intensity.

Matching a wavelength is not the same as reproducing a trial. Session times assume the device's published irradiance is accurate at the distance it was measured, which on brand-claim figures is often optimistic. Where a device publishes both a peak and an average we use the average, and where it publishes a falloff curve we use the lowest figure, so these times run long rather than short. Clinical protocols also control for spot size, contact and skin type in ways a home device cannot.