• Samuel T Kunkel, Matthew J Sabatino, Ravinder Kang, David S Jevsevar, and Wayne E Moschetti.
• Dartmouth Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH, 03756, USA. samuel.t.kunkel@hitchcock.org.
• Eur J Orthop Surg Tr. 2018 Feb 1; 28 (2): 217-232.

BackgroundWe performed a systematic review and meta-analysis to assess whether the direct anterior approach (DAA) is associated with improved functional and clinical outcomes compared to other surgical approaches for hemiarthroplasty for displaced femoral neck fractures.Materials And MethodsRandomized trials and cohort studies of hemiarthroplasty performed via DAA versus another surgical approach (anterolateral, lateral, posterolateral, posterior) were included. Our primary outcome was postoperative functional mobility. Secondary outcomes included overall complication rate, dislocation rate, perioperative fracture, infection rate, re-operation rate, overall mortality, operative time, pain, intra-operative blood loss, and length of stay.ResultsNine studies met inclusion criteria, comprising a total of 698 hips (330 direct anterior, 57 anterolateral, 89 lateral, 114 posterolateral, 108 posterior approach). With regard to functional mobility, DAA was favored in 4 studies, and no study favored another approach over DAA. DAA had a significantly lower dislocation rate compared to posterior capsular approaches. Analysis of other secondary outcomes did not identify statistically significant differences.ConclusionThis is the first systematic review and meta-analysis of the DAA for hemiarthroplasty. Available evidence suggests superior early functional mobility with the DAA. The DAA is associated with a significantly lower dislocation rate compared to posterior capsular approaches for hemiarthroplasty.

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