Matters arising on “Outcomes of dual mobility versus conventional total hip arthroplasty for patients with femoral neck fractures: a systematic review and meta-analysis including registry data”

A meta-analysis by Santiago et al. compared outcomes between two types of total hip arthroplasty to guide clinical decisions for patients with hip fractures. This correspondence details discrepancies between the quantitative data presented in the meta-analysis and the data from its source articles. Methodological issues are also present: the risk of bias tool was applied inconsistently, and different study types (randomized and non-randomized) were combined in a single analysis without appropriate statistical adjustments. These points alter the study's quantitative outcomes, in some cases changing the direction of the comparative treatment effects. Therefore, the conclusions presented in the meta-analysis may not accurately reflect the underlying evidence, which has implications for their use in clinical decision-making.