Fig. 4

The shaping steps of the reconstruction plate. a First, the total anatomical length of the placement trajectory on the pelvis was measured. b Then, select an appropriate length of the arc-shaped reconstruction plate. c Both ends of the plate were reverse twisted and upturned. And the torsion angle of the iliac and pubic regions was higher than the radian of the bone surface, so both ends of the plate were upturned after placed. d The plate in the quadrilateral region slightly incline into the pelvis about 15°