Fig. 4

A 40 years old male (a, b, c, d) in R group and a 47 years old female (e, f) in NR group, who were diagnosed with giant cell tumor of distal femur, experienced curettage of bone tumor and iliac crest graft. a The screws are implanted after iliac crest harvesting. b Bone cement is filled into the defect area. c The cosmesis and morphology of the surgical area compared with contralateral. d posterior-anterior radiograph images of the pelvis at 6 months after surgical reconstruction. e and f, The cosmesis of the surgical area compared with contralateral and posterior-anterior radiograph images of the pelvis at 1 year after surgery without reconstruction