Cervical kyphosis surgery using a cervical pedicle screw placed with a U-shaped wire that enables observation of the lateral edge of the cortical bone of the spinal canal: A case report and literature review.

Rationale: A cervical pedicle screw (CPS) serves as an important anchor for cervical surgeries. Its placement requires the development of a highly safe and easy-to-handle method. Considering that the lateral end of the cortical bone of the spinal canal (LE point) is the most crucial for CPS placement, we devised a U-shaped wire capable of identifying LE points under direct vision and reliably confirming the site with C-arm lateral fluoroscopy.