骨科机器人导航定位系统辅助股骨颈骨折空心螺钉内固定术的应用

Application of the Orthopedics Robot Navigation Positioning System in Assistance of Hollow Screw Internal Fixation for Femoral Neck Fractures

目的探讨骨科机器人导航定位系统辅助股骨颈骨折空心螺钉内固定术的应用效果。方法机器人主控系统首先建立股骨颈骨折经皮空心钉内固定的有限元模型,医生在定位执行系统的引导下完成手术操作。结果 23例手术均达到骨折解剖复位,直径3 mm的导针最大平行度偏差值<1.2 mm;C臂透视时间15.7 s,平均照射次数23.1次。结论机器人辅助创伤骨科手术定位精确、固定可靠、操作安全,同时极大地减少术中患者及医护人员X线照射时间,有效地减小了辐射伤害。

Objective To explore the effectiveness of application of the orthopedics robot navigation positioning system in assistance of hollow screw internal fixation for femoral neck fractures. Methods Firstly, the main control system of the robot would establish a FEA （Finite Element Analysis） model of percutaneous hollow screw internal fixation for femoral neck fractures. Then, physicians could perform the surgeries under the guidance of the positioning implementation system. Results Anatomical reduction of fractures was achieved in all the 23 cases of surgeries. The deviation of the maximum degree of parallelism was less than 1,2 mm for the guide pin （diameter： 3 mm）. The C-arna fluoroscopy time was 15.7 s; while, the average number of radiation times was 23.1. Conclusion The robot-assisted trauma orthopedics surgery proven its advantages of accurate positioning, reliable fixation and safe operation, which could greatly and effectively reduce the intra-operative X-ray exposure time and radiation harm for patients and medical staff.