Background: Instrumentation of the axis can be accomplished through a variety of
techniques including transarticular screw fixation, pars and pedicle screw fixation …

Object Laminar fixation of the axis with crossing bilateral screws has been shown to provide
rigid fixation with a theoretically decreased risk of vertebral artery damage compared with …

Object. The goal of this anatomical study was to investigate the surgical and radiographic
anatomy of the C-2 pedicle in relation to transpedicular screw placement in occipitocervical …

There are four types of axis fixation: axis pedicle screw, axis pars screw, axis transarticular
screw, and axis laminar screw. Each of those techniques has its advantages and …

Forty dry C2 cervical vertebrae were obtained to evaluate quantitatively the anatomy of the
C2 transverse foramen and pedicle. Computed tomography (CT) scans and plain …

Objectives To further assess the safety of transpedicular screw placement in the axis by
comparing two surgical techniques. Summary of Background Data Transpedicular screw …

Object Stabilization of the cervical spine can be challenging when instrumentation involves
the axis. Fixation with C1–2 transarticular screws combined with posterior wiring and bone …

BACKGROUND CONTEXT: Many investigators have studied the appropriate placement of
lateral mass screws in the subaxial spine. Only recently have investigators sought to …

Purpose To explore the feasibility and effectiveness of C1 pedicle screw fixation in patients
whose atlas vertebral artery groove (defined as the C1 pedicle) height is less than 4 mm, but …

BACKGROUND CONTEXT: To our knowledge, there is no clinical study analyzing the
feasibility and complications of the routine insertion of the lateral mass screw via the …