Fig. 3From: The usefulness of wide excision assisted by a computer navigation system and reconstruction using a frozen bone autograft for malignant acetabular bone tumors: a report of two casesPostoperative assessments in case 1: A 12-year-old girl with Ewing sarcoma of the pelvis (PI-II). a Radiograph obtained at 23Â months after reconstruction. b Computed tomography at 23Â months after reconstruction. Bone union is observed, and osteoarthritis is not yet observed. c Pathological findings at biopsy (upper panel) and post-neoadjuvant chemotherapy (lower panel). After neoadjuvant chemotherapy, a necrotic change was observed. d She can walk almost normally, and there are no limitations in the sitting postureBack to article page