Fig. 1From: Accuracy and practicability of a patient-specific guide using acetabular superolateral rim during THA in Crowe II/III DDH patients: a retrospective studya We simulated the implantation of the cup to obtain the ideal cup position. b The fitting part of the guide plate (yellow-green part) and guide plate of the acetabular reamer (rose red part) were designed. c The acetabular screw guide plate includes the hollowed-out area that perfectly corresponds to the safe penetration area of the acetabular screw. The red cylinder presents the relative safe penetration area of the acetabular screw through the graft bone zone. The green cylinder indicates the absolute penetration area of the acetabular screwBack to article page