Fig. 2From: The comparison of clinical outcome of fresh type II odontoid fracture treatment between anterior cannulated screws fixation and posterior instrumentation of C1-2 without fusion: a retrospective cohort studyA successful case of PIWF. a, b Preoperative X-rays: black arrows indicate the fracture line. c, d Preoperative CT scans: the fracture line (black arrows) is clear in coronary and sagittal plane. e, f Postoperative X-rays immediately after operation. g, h Postoperative X-rays 1 year after operation. i–l CT scans 1 year after operation: the trabeculation (black arrows) across the fracture site confirms the bony union. m Skin incision. n Intraoperative picture demonstrating C1 lateral mass screws and C2 pedicle screws. o, p Intraoperative CT scans: the screws are placed in the accurate positionsBack to article page