Figure 3: Case 2- comminuted and posteriorly angulated type 2 odontoid peg fracture with atlanto-axial instability (a). Intra-operative (b) and immediate post-operative (c) pictures showing reconstruction of defect and stabilisation of atlanto-axial joint. 6 month post-operative radiograph showing loose left transarticular screw but maintained reduction and fixation of odontoid peg (d)