3D打印导航模板在耻骨上支骨折螺钉置入中的初步应用

Preliminary application of 3D printing navigation template in the screw insertion of the suprapubic fracture

目的介绍3D打印导航模板辅助耻骨上支骨折中空拉力螺钉置入的方法,并评价其临床效果。方法回顾性收集2016年3月至2017年8月在延安大学附属医院骨科病区就诊的耻骨上支骨折行中空拉力螺钉固定术患者18例的临床资料。术前行骨盆薄层CT扫描获得原始数据,导入mimics17.O软件进行建模,设计、制作辅助耻骨上支骨折中空拉力螺钉置入的个性化导航模板。术前打印出导航模板,术中辅助置钉,术后对骨折复位情况行Matta影像学评分评估和骨盆功能情况行Majeed评分评估。结果所有手术均顺利完成。Matta评分评估优11例、良6例、可1例。Majeed评分评估优13例、良3例、可2例。结论3D打印导航模板辅助耻骨上支骨折中空拉力螺钉置入,可以提供个性化治疗,降低手术难度,临床效果满意。

Objective To introduce the method of using hollow pull screw insertion for the suprapubic fracture with 3D printing navigation template and to evaluate its clinical effect.Methods From March 2016 to August 2017,eighteen cases of suprapubic ramus fractures treated with hollow lag screw fixation in the Department of Orthopedics of Yanan University Affiliated Hospital were retrospectively collected was collected.Before operation,the thin slice CT scan of pelvis was used to get raw data,and the mimics 17.0 software was used to reconstruction the model,to design and make the personalized navigation template assisting the suprapubic fractures surgery.The navigation template was printed out pre-operatively,and the nail was inserted via the assisted by the template intra-operatively.After the operation,the fracture reduction was evaluated by Matta imaging scores and the pelvis function was evaluated by Majeed scores.Results All the operations were successfully completed.The Matta scores were excellent in 11 cases,good in 6 cases,and fair in 1 case.The Majeed scores were excellent in 13 cases,good in 3 cases,and fair in 2 cases.Conclusion 3D Printing navigation template assisted the placement of the hollow screw on the suprapubic fracture could provide personalized treatment,reduce the difficulty of operation and satisfy the clinical effect.