Antirotation proximal femoral nail versus dynamic hip screw for intertrochanteric fractures: A meta-analysis of randomized controlled studies

SummaryBackgroundPrevious studies comparing proximal femoral nail antirotation (PFNA) with dynamic hip screw (DHS) for peritrochanteric fractures reported conflicting findings. The objective of this meta-analysis was to compare the efficacy and safety of PFNA and DHS for pertrochanteric fractures.HypothesisPFNA achieves better efficacy for peritrochanteric fractures compared with DHS.Materials and methodsRelevant randomized controlled trials comparing PFNA with DHS for pertrochanteric fractures were assessed for eligibility and included into this meta-analysis. Data were extracted independently and methodological quality was further assessed. The inclusion criteria of this meta-analysis were: randomized controlled trials comparing PFNA with DHS for pertrochanteric fractures and reporting at least one of these main outcomes, including operating time, blood loss, all causes mortality, and complications.ResultsFive randomized controlled trials were finally included into this meta-analysis. Pooled results showed there were less blood loss (weighted mean difference Blood loss=−249.75ml, 95%CI −303.83 to −195.67, P