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Table 5 The intervention characteristics of the control studies

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

Year/author Indications/contraindication Kinds of pedicle bone flap Size of bone flap (cm) Duration of the operation (minutes) Postoperative management Additional note
TIG Other TIG Other TIG Other TIG Other TIG Other
2016/Zhaoa [21] NA Ascending branch of the lateral femoral circumflex artery pedicle bone flap 5 × 3 5 × 3 NA NA NA NA Bone flap was fixed by absorbable screw
2006/Yenb [22] Steinberg II, III, IV Stage NA NA NA NA 210 420 NA NA
2003/Hasegawac [23] TIG: Ficat II stage and JIC IC or II type Other: Ficat III stage or above, and JIC IC or II type, and the necrosis area < 36% in frog lateral view Superficial circumflex iliac artery pedicle bone flap NA NA NA Exercises were started in the third week after the operation. At 12 weeks partial weight-bearing (10 kg) and at 24 weeks full weight-bearing were allowed.
  1. TIG target intervention group, other other treatments as a control group for 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 refers to free vascularized fibula bone grafting
  4. cTIG refers to vascularized iliac pedicle bone grafting, and other treatments refer to transtrochanteric rotational osteotomy