Effect of High-Riding Vertebral Artery on the Accuracy and Safety of C2 Pedicle Screw Placement in Basilar Invagination and Related Risk Factors.

ABSTRACT:

Study design

Retrospective cohort study.

Objective

To investigate the effect of HRVA on the intrapedicular accuracy of C2PS placement through the freehand method in patients with BI and analyse the possible risk factors for C2PS malpositioning.

Method

A total of 91 consecutive patients with BI who received 174 unilateral C2PS placements through the freehand method were retrospectively included. The unilateral pedicles were assigned to the HRVA and non-HRVA groups. The primary outcome was the intrapedicular accuracy of C2PS placement in accordance with the Gertzbein-Robbins scale. Moreover, the risk factors that possibly affected intrapedicular accuracy were assessed.

Results

The rate of intrapedicular accuracy in C2PS placement in patients with BI was 23.6%. Re

SUBMITTER: Zhou LP 

PROVIDER: S-EPMC10802529 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature