Do Patients With Carpal Tunnel Syndrome Benefit From Low-Level Laser Therapy? A Systematic Review of Randomized Controlled Trials

Publication date: August 2018

Source: Archives of Physical Medicine and Rehabilitation, Volume 99, Issue 8

Author(s): Thierry P. Franke, Bart W. Koes, Sven J. Geelen, Bionka M. Huisstede

Abstract

Objective

To systematically review the literature on the effectiveness of low-level laser therapy for patients with carpal tunnel syndrome.

Data Sources

The Cochrane Library, PubMed, Embase, CINAHL, and Physiotherapy Evidence Database were searched for relevant systematic reviews and randomized controlled trials (RCTs) up to April 8, 2016.

Study Selection

Two reviewers independently applied the inclusion criteria to select potential studies.

Data Extraction

Two reviewers independently extracted the data and assessed the methodologic quality.

Data Synthesis

A best-evidence synthesis was performed to summarize the results of the 2 systematic reviews and 17 RCTs that were included. Strong evidence was found for the effectiveness of low-level laser therapy compared with placebo treatment in the very short term (0 to ≤5wk). After 5 weeks, the positive effects of low-level laser therapy on pain, function, or recovery diminished over time (moderate and conflicting evidence were found at 7- and 12-wk follow-up, respectively).

Conclusions

In the very short term, low-level laser therapy is more effective as a single intervention than placebo low-level laser therapy in patients with carpal tunnel syndrome, after which the positive effects of low-level laser therapy tend to subside. Evidence in the midterm and long term is sparse.

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