%0 Journal Article %A K. Nagahama %A H. Sudo %A K. Abumi %A M. Ito %A M. Takahata %A S. Hiratsuka %A K. Kuroki %A N. Iwasaki %T Anomalous vertebral and posterior communicating arteries as a risk factor in instrumentation of the posterior cervical spine %D 2014 %J The Bone & Joint Journal %P 535-540 %V 96-B %N 4 %R 10.1302/0301-620X.96B4.33210 %U https://doi.org/10.1302/0301-620X.96B4.33210 %K Vertebral artery,Posterior communicating artery,Cervical instrumentation surgery,Three-dimensional CT angiography,Risk factor,Algorithm