488 - Intraoperative 3D Navigation Assisted Minimally Invasive C1-2 Transart...

#488 Intraoperative 3D Navigation Assisted Minimally Invasive C1-2 Transarticular Screw Fixation - Preliminary Reports of 10 cases

MIS Techniques and Outcomes

Poster Presented by: Y. Liu

Author(s):

Y. LIU (1)
W. Tian (1)

(1) Beijing Jishuitan Hospital, Spine Surgery, Beijing, China

Abstract

Introduction: To assess the feasibility of a new method for minimally invasive C1-2 transarticular screw fixation assisted by intraoperative 3D navigation.

Methods: Designed a new method for bilateral C1-2 transarticular screw fixation, which was minimally invasive approach assisted by intraoperative 3D navigation. Preliminary applied to 10 patients with atlantoaxial dislocation . The patients' clinical outcomes within- and after-operation were evaluated, and the accuracy of screws was assessed by electronic C-arm 3D reconstruction images. The results were compared with traditional approach fluoroscopy assisted technique.

Results: All the operations done uneventfully. No severe complications, such as injury of nerve or blood vessels, especially the vertebral arteries, were encountered. The screws were placed precisely, and purchased enough bone substance. No post-operative axial neck pain occurred. Compared with traditional fluoroscopic technique, the intraoperative bleeding was decreased and the accuracy of screws increased.

Conclusion: Intraoperative 3D navigation assisted minimally invasive C1-2 transarticular screw fixation is a new method has both advantages of intraoperative 3D navigation and minimally invasive techniques. With experience of both navigation technique and minimally invasive techniques, this new technique should be feasible and safe.