Fig. 6

3-D reconstructed model of hip and AP radiographs of fracture, treatment fixation and revision implants in a 59-year-old woman with a vertical femoral neck fracture. a Reconstructed model (AP view) from preoperative CT images showing the location of the fracture. b AP radiograph showing initial treatment with a dynamic hip screw with an anti-rotational screw. c AP radiograph of the same patient taken 5 months after initial surgery, revealing severe screw withdrawal, femoral neck shortening, varus deformation, and delayed union. d AP radiograph of the same patient after revision operation with arthroplasty