TABLE 1. A summary of previous studies on vertebral artery injury incidence.
| Study | Year | Name of surgery | No. of vertebral artery injuries | No. of cases | Incidence (%) |
|---|---|---|---|---|---|
| Madawi et al.10) | 1997 | C1-2 transarticular screw fixation | 5 | 61 | 8.2 |
| Wright and Lauryssen19) | 1998 | C1-2 transarticular screw placement | 54 | 1,318 | 4.1 |
| Rampersaud et al.14) | 2006 | Cervical spine surgery | 3 | 212 | 1.4 |
| Neo et al.12) | 2008 | Cervical spine surgery | 8 | 5,641 | 0.14 |
| Posterior atlantoaxial transarticular screw fixation | 2 | 149 | 1.3 | ||
| Lunardini et al.9) | 2014 | Cervical spine surgery | 111 | 163,324 | 0.07 |
| Posterior instrumentation of the upper cervical (C1-2) spine surgery | 36 | - | - | ||
| Hsu et al.7) | 2017 | Cervical spine surgery | 14 | 16,582 | 0.08 |
| Lee et al.8) | 2019 | Cervical spine surgery | 13 | 15,582 | 0.08 |
| C1-2 posterior screw fixation | 7 | 518 | 1.35 |