ObjectiveTo observe whether a new laser positioning and navigation system can reduce the total drilling attempts and the use of intraoperative fluoroscopy and improve the accuracy of guide pins when assisting cannulated screw placement in the femoral neck fractures.MethodsTwenty thigh models made using 3-dimensional printed skin and artificial femur models were equally divided into traditional C-arm X-ray fluoroscopic guidance group (traditional group) and laser positioning and navigation assistance group (navigation group), with 10 thigh models in each group. All models were placed with 3 guide pins in a "parallel and inverted triangle" configuration. The number of drilling attempts, the use of intraoperative fluoroscopy, and the parallelism and dispersion of guide pins were statistically evaluated after operation in the 2 groups.ResultsThe surgical procedures were uneventful in both groups, and all 60 guide pins were successfully placed without penetrating the femoral neck cortex. The numbers of drilling attempts and the use of intraoperative fluoroscopy in the navigation group were less than those in the traditional group (5.3±1.8 vs 7.5±2.3, P＝0.03; 10.8±2.7 vs 18.5±2.7, P < 0.01). There were no significant differences in the parallelism or dispersion of the guide pins between the navigation group and the control group (both P > 0.05).ConclusionThis new laser positioning and navigation system can reduce the drilling attempts and the use of intraoperative fluoroscopy, but cannot improve the parallelism or dispersion of guide pins.