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a 3D pelvic with external iliac artery model created from fused deposition modeling (FDM) printer with acrylonitrile butadiene styrene (ABS) material showing sizeable peri-acetabular bone defect as a pre-operative physical simulation assisted for implant selection between Burch-Schneider Cage and Ganz ring. b Ganz ring, size 44 with three posterior screws selected as pre-operative planning, the rest filling bone defect with PMMA
