Risk of vertebral artery injury: comparison between C1–C2 transarticular and C2 pedicle screws

Background context To our knowledge, no large series comparing the risk of vertebral artery injury by C1–C2 transarticular screw versus C2 pedicle screw have been published. In addition, no comparative studies have been performed on those with a high-riding vertebral artery and/or a narrow pedicle who are thought to be at higher risk than those with normal anatomy. Purpose To compare the risk of vertebral artery injury by C1–C2 transarticular...