Case of a 19-year-old male patient who sustained a Type 2 Dennis fracture of the sacrum associated with pubic symphysis diastasis and superior subluxation of the right side of the pelvis (type C1) following a fall from height (top pictures: AP radiographic view and pelvis CT-reconstruction; middle pictures: coronal view). The patient was initially treated with reduction and fixation with double plate and screws (anterior stabilization with anterior approach). This was followed by S-I joint fixation with two percutaneous CT-guided screws within S1 and S2 vertebral body 5 days following the initial procedure (bottom pictures: plain radiographs following percutaneous screw fixation).