Treating C1-2 subluxation with transarticular screw and posterior atlantoaxial fusion-A 5-year experience

This study provides bone data of the C2 isthmus. C1-2 transarticular screw fixation with posterior atlantoaxial fusion provides stable fixation and a high fusion rate. Preoperatively, a CT scan is essential to recognize the location of a large vertebral foramen and narrow isthmus to avoid the risk of vertebral artery injury.