Deep circumflex iliac artery-vascularized iliac bone graft for femoral head osteonecrosis: Computed tomography anatomical study.

To obtain a satisfactory pedicle length and sufficient blood supply, the DCIA pedicle of the vascularized iliac graft should be placed 2-3 cm behind the ASIS. The dissection of DCIA has slight differences in sex and left-right position due to anatomical differences.