Fig. 1

a Details of the wound on the left pelvic side before the initial operation [lower abdomen with exposed urinary bladder, eviscerated bowel, destructed perineum, and almost complete avulsion of the left lower extremity]. b Postoperative clinical situation with left traumatic hemipelvectomy and an ipsilateral anterolateral thigh flap, achieving the primary closure of the wound. c Radiological study showing dislocation of the right sacroiliac joint and symphysis pubis with only some ligamentous attachment. d Computed tomography angiography of the pelvis and right lower extremity indicating the absence of blood flow to the right lower extremity