Aging clinical and experimental research · 2024
A systematic review and network meta-analysis on the optimal wavelength of low-level light therapy (LLLT) in treating knee osteoarthritis symptoms.
СтатьяСистематический обзорNetwork Meta-AnalysisНазвание и аннотация: Перевод в очереди
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Fan Tianxiang, Li Yang, Wong Arnold Y L, Liang Xiao, Yuan Yarou, Xia Peng, Yao Zhi, Wang Deli, Pang Marco Y C, Ding Changhai, Zhu Zhaohua, Li Ye, Fu Siu Ngor
Аннотация
OBJECTIVES: To compare the efficacy of the various wavelengths of low-level light therapy (LLLT) in alleviating knee pain, dysfunction, and stiffness in patients with knee osteoarthritis (KOA), and to compare the effectiveness of LLLT versus sham treatment in reducing knee pain, dysfunction, and stiffness.
METHODS: PubMed, Web of Science, EMBASE, and Cochrane Library were searched from inception to 12 December 2023. Randomized controlled trials that assessed the effects of different wavelengths of LLLT on alleviating pain of patients with KOA were included. A conventional meta-analysis and network meta-analysis were preformed, and standardized mean differences (SMD) with 95% confidence interval (CI) were calculated.
RESULTS: Thirteen studies involving 673 participants with KOA met inclusion criteria. Overall, LLLT was superior to sham LLLT for relieving pain (SMD = 0.96, 95% CI 0.31-1.61) but not for improving function (SMD = 0.21, 95% CI - 0.11 to 0.53) or stiffness (SMD = 0.07, 95% CI - 0.25 to 0.39). Surface under the cumulative ranking curve (SUCRA) value ranking showed the most effective wavelength of LLLT in reducing KOA pain was 904-905 nm (SUCRA, 86.90%), followed by multi-wavelengths (MWL) (SUCRA, 56.43%) and 785-850 nm (SUCRA, 54.97%). Compared to sham LLLT, L2 (SMD = 1.42, 95% CI = 0.31-2.53) and L1 (SMD = 0.82; 95% CI = 0.11-1.50) showed a significant reduction in KOA pain. However, MWL (SMD = 0.83; 95% CI = - 0.06 to 1.72) showed similar KOA pain reduction compared to sham LLLT. The certainty of evidence showed that the quality of evidence regarding the effectiveness of overall LLLT versus sham, and 904-905 nm versus sham were low, while the quality of evidence for MWL versus sham, and 785-850 nm versus sham was very low.
CONCLUSION: While the 904-905 nm wavelength showed potential benefits in reducing KOA pain, the overall quality of the evidence was low. LLLT with 904-905 nm or 785-850 nm wavelengths yielded significantly better reduction in KOA pain compared to sham LLLT, but further high-quality research is warranted to validate these findings.
METHODS: PubMed, Web of Science, EMBASE, and Cochrane Library were searched from inception to 12 December 2023. Randomized controlled trials that assessed the effects of different wavelengths of LLLT on alleviating pain of patients with KOA were included. A conventional meta-analysis and network meta-analysis were preformed, and standardized mean differences (SMD) with 95% confidence interval (CI) were calculated.
RESULTS: Thirteen studies involving 673 participants with KOA met inclusion criteria. Overall, LLLT was superior to sham LLLT for relieving pain (SMD = 0.96, 95% CI 0.31-1.61) but not for improving function (SMD = 0.21, 95% CI - 0.11 to 0.53) or stiffness (SMD = 0.07, 95% CI - 0.25 to 0.39). Surface under the cumulative ranking curve (SUCRA) value ranking showed the most effective wavelength of LLLT in reducing KOA pain was 904-905 nm (SUCRA, 86.90%), followed by multi-wavelengths (MWL) (SUCRA, 56.43%) and 785-850 nm (SUCRA, 54.97%). Compared to sham LLLT, L2 (SMD = 1.42, 95% CI = 0.31-2.53) and L1 (SMD = 0.82; 95% CI = 0.11-1.50) showed a significant reduction in KOA pain. However, MWL (SMD = 0.83; 95% CI = - 0.06 to 1.72) showed similar KOA pain reduction compared to sham LLLT. The certainty of evidence showed that the quality of evidence regarding the effectiveness of overall LLLT versus sham, and 904-905 nm versus sham were low, while the quality of evidence for MWL versus sham, and 785-850 nm versus sham was very low.
CONCLUSION: While the 904-905 nm wavelength showed potential benefits in reducing KOA pain, the overall quality of the evidence was low. LLLT with 904-905 nm or 785-850 nm wavelengths yielded significantly better reduction in KOA pain compared to sham LLLT, but further high-quality research is warranted to validate these findings.