Abstract:Objective To evaluate the accuracy of acetabular anterior column screw placement under robotic navigation，so as to provide a reference for clinical treatment. Methods A total of 78 patients who underwent anterior column screw placement with robotic navigation at Gansu Provincial Hospital from January 2022 to January 2024 were retrospectively collected. The patients were divided into observation group（44 cases）and control group（34 cases）according to different surgical methods. Screws were placed under robotic navigation in the observation group ，while screws were inserted freehand under fluoroscopic guidance in the control group. Postoperative examinations were completed. Excellent placement was defined as accurate screw position according to the accuracy evaluation criteria. The numbers of accurately placed anterograde anterior column screws，retrograde anterior column screws and total screws were counted，and the screw placement accuracy rates were compared between the two groups.Results Compared with the control group，the observation group showed slightly higher accuracy placement rates of anterograde anterior column screws（92.0% vs 80.0%，χ²=0.54，P=0.462），retrograde anterior column screws（94.7% vs 85.7% ，P=0.561），and overall screws（93.2% vs 82.4% ，χ²=1.27，P=0.260），but none of these differences were statistically significant. Conclusion Compared with freehand percutaneous screw insertion under fluoroscopy，the accuracy of percutaneous screw placement assisted by robotic navigation is somewhat higher，but the difference is not statistically significant.