Study Design. In vitro biomechanical study. Objective. To compare the pullout strengths and
the biomechanical stabilities afforded by C1 lateral mass screws and C1 pedicle screws …

✓ Rigid fixation of the axis with C1–2 transarticular screws or C-2 pedicle screws results in
high fusion rates but remains technically demanding because of the risk of injury to the …

Study Design. Human cadaveric biomechanical analysis. Objective. The purpose of this
study is to evaluate the ability of using 1 of the remaining 2 methods of instrumenting C2 …

Posterior transarticular screw fixation C1-2 with the Magerl technique is a challenging
procedure for stabilization of atlantoaxial instabilities. Although its high primary stability …

✓ Atlantoaxial fixation in which C1–2 screw–rod fixation is performed is a relatively new
method. Because reports about this technique are rather scant, little is known about its …

Purpose The established technique for posterior C1 screw placement is via the lateral mass.
Use of C1 monocortical pedicle screws is an emerging technique which utilizes the bone of …

Object The purpose of this study was to evaluate the effect of a fixed atlantoaxial angle on
subaxial sagittal alignment, and that of atlantoaxial fixation on adjacent-segment motion and …

Object Several techniques for the surgical stabilization of the atlas and the axis have been
described. Placement of C-1 lateral mass screws is one of the latest technical advances, and …

BACKGROUND CONTEXT: C2 intralaminar screws offer the advantage of avoiding the
vertebral artery; however, biomechanical studies have demonstrated inferiority of C2 …

The surgical treatment of craniocervical junction (CCJ) instability has recently undergone
significant development and change. Posterior instrumentation surgery has been the …