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Table 7 The outcome of control studies

From: Vascularized pedicle iliac bone grafts as a hip-preserving surgery for femur head necrosis: a systematic review

Year/author Clinical evaluation Clinical evaluation based on the Ficat stage classification (mean difference/clinical success rate) Radiographic evaluation (radiographic failure) Complications /rate of complications
Mean difference (scale used) Clinical success rate TIG Other TIG Other TIG Other
TIG Other TIG Other I II III IV I II III IV
2016/Zhaoa [21] 26.08 (HHS) 22.53 (HHS) 95.65% 76.00% 21.16/100% 32.37/90% 17.34/92.31% 28.07/58.33% 8.7% 24% NA NA
2006/Yenb[22] 2 (Charnley Functional Hip Score) 3 (Charnley Functional Hip Score) NA NA NA NA NA NA NA NA 43.59% 18.18% Mild wound-edge necrosis (2), damage of cutaneus femoris lateralis nerve (5), inguinal protrusion (1) 24.24% Claw toe (1) 4.54%
2003/Hasegawa c [23] 14 (HHS) 18 (HHS) 58% 68% NA NA NA NA NA NA Mild wound-edge necrosis (3), damage of cutaneus femoris lateralis nerve (8) 42.31% Early deep infection (1), trochanteric fracture (5), pseudarthrosis (1) 11.11%
  1. TIG target intervention group, other other treatments as a control group for the target intervention group, NA not available
  2. aTIG refers to the Mg screw group (vascularized bone grafting fixed by Mg screws), and other treatments refer to vascularized bone grafting without fixation as a control group
  3. bTIG refers to vascularized iliac pedicle bone grafting, and other treatments refer to free vascularized fibula bone grafting
  4. cTIG refers to vascularized iliac pedicle bone grafting, and other treatments refer to transtrochanteric rotational osteotomy