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Table 1 Characteristics of included studies

From: Outcomes of dual-mobility total hip arthroplasty versus bipolar hemiarthroplasty for patients with femoral neck fractures: a systematic review and meta-analysis

Author, year Study design Enrolled sample number (G1/G2) Age (G1/G2) Female sex (G1/G2) Comparing Mean follow-up Surgical approach Single or multi-surgeon Outcome measurement
   a b c d e f g
Nonne, 2019 [9] Retrospective comparative study 88/60 86.1/87.6 66(75%)/45(75%) HA vs. DM 28.3 months PL Not mentioned V V    V   
Ukaj, 2019 [10] Randomized controlled trial 32/34 77.6/78.1 15(32%)/24(51%) HA vs. DM 36 months PL Single surgeon V V   V V V V
Iorio, 2019 [11] Randomized controlled trial 30/30 83/82 17(57%)/18(60%) HA vs. DM 12 months DL Not mentioned V V V V   V  
Fahad, 2019 [12] Retrospective comparative study 77/27 71.1/69.3 46(60%)/14(52%) HA vs. DM 12 months DL or PL Multi-surgeon   V   V V   
Kim, 2018 [13] Retrospective comparative study 84/84 72.9/73.1 57(68%)/58(69%) HA vs. DM 21.9 months PL Single surgeon V    V V V V
Boukebous, 2018 [14] Retrospective comparative study 101/98 83.3/77.8 73(73%)/70(71%) HA vs. DM 24.6 months PL Multi-surgeon V   V    V  
Ochi, 2017 [16] Retrospective comparative study 20/33 75.4/80.0 16(75%)/26(78%) HA vs. DM 20.5 months DAA Multi-surgeon V V V V   V V
Bensen, 2014 [15] Retrospective comparative study 171/175 84.1/75.2 131(77%)/123(70%) HA vs. DM 23.5 months PL Multi-surgeon V V V V   V V
  1. G1: HA hemiarthroplasty; G2: DM dual-mobility total hip arthroplasty; DAA direct anterior approach; DL direct lateral approach; PL posterolateral approach; a dislocation; b Implant failure; c reoperation; d 1-year mortality; e Harris hip score; f operation time; g intraoperative blood loss