Comment on Li et al.: Single-bundle versus double-bundle anterior cruciate ligament reconstruction: An up-to-date meta-analysis

摘要

In International Orthopaedics, Xue Li and his colleagues published a meta-analysis conducted to compare the efficacy of arthroscopic single-bundle and double-bundle anterior cruciate ligament reconstruction, and they did very well [1]. However, the meta-analysis has brought a few questions to our minds that we would like to convey to the authors: 1. Publication language was limited to English in the meta-analysis. Therefore, the authors should mention the potential importance of language bias in the limitations of their meta-analysis.2. In the article, the authors used the odds ratio (OR) for dichotomous outcomes to report the risk value rather than relative risk (RR). As there are 17 randomised controlled trials (RCTs) included, RR can report the real risk value better than OR. Therefore, we suggest that RR should be used to report the risk value in this article.