Chronic Neck Pain (Meta-Analysis, 820 patients)

Category: Pain & Musculoskeletal

Journal: The Lancet (2009)

Key finding

Reduced pain by 19.86 mm VAS and disability by 13.01% vs placebo (P<0.001). Definitive evidence of efficacy.

Protocol

• Wavelength: 820–1000 nm
• Irradiance: Varies
• Dose: 0.9–38.9 J
• Duration: 16 RCTs analyzed

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