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Table 1 Characteristics of the included studies

From: Distal locked versus unlocked intramedullary nailing for stable intertrochanteric fractures, a systematic review and meta-analysis

Study Year Nation Study design Diagnosis characteristics (AO/OTA) Implant Gender (M/F) Mean age (years) Type of fracture (A1/A2/total, n) Follow-up (months)
Locking Locking Unlocking Unlocking Locking Unlocking
Ciaffa V 2018 Italy RCT 31-A1+ A2 Citieffe nail 89/50 77.1 ± 2.3 75.6 ± 3.5 49/24 46/93/139 25/48/73 12
Lanzetti RM 2018 Italy PCS 31-A1+ A2 SM Supernail 11/57 84.5 ± 8.76 85.48 ± 7.84 13/62 38/30/68 35/40/75 14.1 (12–18).
Li X 2015 China RCT 31-A1 + A2 PFNA-II 11/24 78.1 ± 6.9 78.3 ± 7.0 10/25 7/28/35 11/24/35 12
Lopez-Vega M 2015 Spain RCT 31-A1 + A2 Gamma 3 nail 17/73 84,59 ± 9,11 83,68 ± 6,90 19/68 34/56/90 46/41/87 12
Skala-Rosenbaum 2010 Czech Republic PCS 31A1 + A2 PFH 10/34 79.6 79.8 17/57 14/30/44 38/36/74 12
Skala-Rosenbaum J 2016 Czech Republic PCS 31A1 + A2 PFN N/A N/A 81.7 82.8 NA/NA/595 NA/NA /254 12
V.Caiaffa 2016 Italy RCT 31-A1 + A2 Citieffe nail 41/89 78.4 ± 7.1 77.9 ± 7.2 52/84 37/93/130 48/88/136 12
Vopat BG 2014 USA RCS 31-A1.1,+.2, +.3 long Gamma3 NA NA NA NA 56/0/56 51/0/56 12
Yun, Ho Hyun 2015 Korea RCS 31-A1.1 + .2 Gamma3 11/7 75.1 ± 11.7 75.1 ± 11.7 21/8 18/0/18 29/0/29 17.8 ± 10.6
  1. RCT randomized controlled trial, PCS prospective cohort study, RCS retrospective cohort study, M/F male/female, NA notavailable
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