Effects of low-level and high-intensity laser therapy as adjunctive to rehabilitation exercise on pain, stiffness and function in knee osteoarthritis: A systematic review and meta-analysis.

Ahmad, Mohd Azzuan and A. Hamid, Mohamad Shariff and Yusof, Ashril (2022) Effects of low-level and high-intensity laser therapy as adjunctive to rehabilitation exercise on pain, stiffness and function in knee osteoarthritis: A systematic review and meta-analysis. Physiotherapy, 114. pp. 85-95. DOI https://doi.org/10.1016/j.physio.2021.03.011.

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Abstract

Background When treating knee osteoarthritis (KOA), rehabilitation exercise is often combined with low-level (LLLT) or high-intensity laser therapy (HILT). However, the effectiveness of these combinations is still uncertain. Objective To examine the effects of LLLT or HILT combined with rehabilitation exercise (LLLT + E or HILT + E) on pain, stiffness and function in KOA. Data sources Five databases (PubMed, Web of Science, CINAHL, PEDro and SPORTDiscus) were searched for relevant studies published up to 31 December 2019. Study selection KOA randomised controlled trials, LLLT + E or HILT + E against exercise alone with or without placebo laser, reported clinical outcomes, human studies and English language. Data synthesis Methodological quality was assessed by the PEDro and Cochrane risk-of-bias scales, and the meta-analysis was undertaken using RevMan 5.3. Results Of the 10 retrieved studies, six investigated LLLT + E, three on HILT + E, and one evaluated both. All the studies had high PEDro scores. However, as most of the studies employed a single type of laser therapy, only indirect comparison of LLLT + E and HILT + E was possible. This study found all treatment modalities were effective in reducing KOA symptoms. Interestingly, relative to control, the meta-analysis showed significant improvements in knee pain, stiffness and function for the HILT + E. Conclusion Both LLLT and HILT are beneficial as adjuncts to rehabilitation exercise in the management of KOA. Based on an indirect comparison, the HILT + E seems to have higher efficacy in reducing knee pain and stiffness, and in increasing function. To confirm this finding, a direct comparative investigation of the two types of laser therapy may be necessary. (c) 2021 Chartered Society of Physiotherapy. Published by Elsevier Ltd. All rights reserved.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: Exercise therapy; Knee joint; Laser therapy; Meta-analysis; Osteoarthritis; Rehabilitation
Subjects: R Medicine > R Medicine (General) > Medical technology
Divisions: Faculty of Medicine
Faculty of Sports and Exercise Science (formerly known as Centre for Sports & Exercise Sciences)
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 04 Oct 2023 03:24
Last Modified: 04 Oct 2023 03:24
URI: http://eprints.um.edu.my/id/eprint/43017

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