An experimental study of cannulated screw fixation of femoral neck fractures aided by the bi-planar navigation robot system
- VernacularTitle:双平面骨科机器人系统辅助股骨颈骨折空心螺钉内固定术的实验研究
- Author:
Chunpeng ZHAO
;
Junqiang WANG
;
Yu WANG
- Publication Type:Journal Article
- Keywords:
Computer assisted orthopaedic surgery(CAOS);
Bi-planar navigation robot system;
Femoral neck fracture;
Cannulated screws
- From:
Chinese Journal of Orthopaedic Trauma
2002;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate clinical feasibility, security, and effects of cannulated screw fixation of femoral neck fractures aided by the bi-planar navigation robot system. Methods Under the guidance of the robot system which was developed jointly by Beijing Aeronautics and Space University and our hospital, 15 pins were inserted into the femoral necks of 5 Synbone models. The difference between the distance of any 2 points at the entry point and that at the outlet point was measured in the 5 cases. The ratio (P) of the difference to the length of the pin within the femoral neck of the Synbone models was calculated to evaluate how parallel the 2 pins were. The fluoroscopic times and the radiation exposure time in the robot-aided treatment were recorded and compared with those in the 12 cases of conventional operations which were conducted in our department from June to September, 2005. Results P was about 0.003 7 to 0.018 1, and the X-ray exposure time in robot aided system was 2.32 s vs 28.30 s in the conventional operations. The average fluoroscopic times in robot aided system were 4.4 vs 54.3 in the conventional operations. Conclusion As the bi-planar navigation robot system can provide accurate space orientation and stable navigation route, and can decrease the X-ray radiation to the patient and staff, it has a significant value in clinical application.
