• Curr Med Res Opin · Jan 2015

    Meta Analysis Comparative Study

    Retrograde versus antegrade intramedullary nailing for femoral fractures: a meta-analysis of randomized controlled trials.

    • Fan Zhang, Lei Zhu, Yongchuan Li, and Aimin Chen.
    • a Department of Orthopedic Trauma Surgery , Orthopedic Institute of PLA, Shanghai Changzheng Hospital, Second Military Medical University , Shanghai , China.
    • Curr Med Res Opin. 2015 Jan 1; 31 (10): 1897-902.

    ObjectivesTo conduct a meta-analysis of randomized controlled trials assessing the effect on clinical outcomes of intramedullary nailing for femoral fractures via a retrograde or antegrade approach.Data SourcesRandomized controlled trials using PubMed, Embase, and the Cochrane Library databases.Study SelectionWe used the following search terms with no language or study type restrictions: femoral shaft fractures, internal fixation, treatment outcome, intramedullary nailing, and retrograde or antegrade approach.Data ExtractionTwo independent authors extracted the data and we assessed the quality of the included studies based on Jadad score; allocation concealment; similarity of baseline characteristics; eligibility criteria; blinding; completeness of follow-up; and intention-to-treat analysis. Our primary outcome measure was the union rate and the secondary outcome measures were nonunion, knee pain, and heterotopic ossification. A total of 240 patients from three randomized controlled trials were included.Data SynthesisRisk ratios (RRs) and 95% confidence intervals (CIs) were computed for dichotomous variables, and weighted mean differences and 95% CIs for continuous variables. Heterogeneity among studies was assessed using the I (2) statistic, with I (2 )> 50% considered significant. If heterogeneity was not significant, a fixed effects model was chosen to assess the overall estimate. Otherwise, a random effects model was used. We used Egger's regression asymmetry test and Begg's adjusted-rank correlation to assess publication bias.ConclusionsBoth retrograde and antegrade intramedullary nailing produced high union rates. We found no significant difference in union rate between the retrograde nailing group and the antegrade nailing group for femoral fractures (RR 1.02, 95% CI: 0.94-1.11, p = 0.59, I (2 )= 0%).

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