Meta-analysis On Application Of Computer-assisted Navigation In Lumbar Pedicle Screw Fixation

Objective:To evaluate the application of computer-assisted navigation technique in lumbar pedicle screw fixation. Methods:Databases such as PubMed, Embase and China journal full-text database CNKI were searched about computer-assisted navigation in lumbar pedicle screw fixation, related studies and literatures were hand-searched as well, and then compared insertion accuracy, intraoperative blood loss, operative time consumption and rate of insertion-related complications between computer-assisted navigation technique group and conservative technique group. Results:Finally7studies which meet the inclusion criteria were included with784patients and4101lumbar pedicle screws in total. Meta-analysis indicated that malposition rate and intraoperative blood loss have statistic difference comparing computer-assisted navigation with conservative insertion method, meanwhile operative time consumption and complication occurrence rate didn’t show significant difference between groups. Conclusion:Applying computer-assisted navigation technique in lumbar pedicle screw fixation would improve insertion accuracy, however, further study is still needed to make clear whether this technique can improve final outcome of post-operative patients.