主动注册和3D打印体表导板引导下踝部空心钉取出术
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1.广东省中医院珠海医院;2.珠海市香洲区第二人民医院

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珠海市科技创新局课题


Technique of active registration location and 3D printed superficial template for removing cannulated screw on ankle
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1.Guangdong Province Hospital of TCM ZhuHai Branch;2.Department of Orthopaedics,The Second hospital of Xiang zhou District, Zhu Hai city

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    摘要:

    目的:介绍主动注册和3D打印体表导板引导下踝部空心钉取出的手术技术和初步临床结果。方法:在行踝部空心螺钉拆除患者,术前在踝部体表贴3片环形的金属垫片用于定位锚点的作用,用记号笔在体表标记好环形垫片的位置,带着定位好垫片行CT扫描并3D重建,后将扫描数据导入e3D软件设计含定位孔和螺钉导针孔体表导板,术中将导板定位孔和体表标记垫片孔吻合后在导针孔置入导针并取除螺钉,术中C臂透视,评估此手术方法的安全性和有效性。结果:5例患者13枚螺钉,4例患者一次性置入导针成功,1例患者1枚内踝空心螺钉首次置入导针失败,经调整导板位置后二次置入成功。每枚螺钉术口约0.5cm;从放置导板到取出螺钉时间(5.62±2.47)min,一次置入导针成功率92.30%,无神经血管损伤等并发症。结论:主动注册和3D打印体表导板引导下行踝部空心钉取出术,无需切开皮肤放入体内,既可以做到微创,又可以实现精准,成功率高,并且对材质要求不高,成本低廉, 在临床应用中有一定价值。

    Abstract:

    0bjective:To introduce the surgical technique and preliminary clinical outcomes of active registration and 3D printed superficial template for removing cannulated screw on ankle. Methods:patients needed to remove cannulated screw on ankle were chosen,three metal gaskets used for function of locate anchor were place on the surface of their ankle pre-operation,and then signed theirs exactly location by marking pen before examination of CT. e3D software designs 3D printed superficial template with location hole and guide hole based on data of CT scanning. Guide wires were inserted to cannulated screw through guide hole of 3D printed superficial template by means of coincide location hole with marked hole on ankle surface,and then removed screw. As well as evaluate the effectiveness and safety of application, combined with intraoperative C-arm fluoroscopy. Results:4 of 5 patients were found to insert the guide wire accurately only one time. Only one medial malleolus hollow screw on one patient as to all 13 screws was failed to insert the guide wire for the first time, and the guide wire was successfully inserted after re-adjusting the position of the template. they were minimally invasive operation with only 0.5cm incision for every hollow screw, The time from place 3D printed superficial template to screw removal was only need (5.62±2.47) mins, and the success rate of one time insertion guide wire to hole on cannulated screw was 92.30%, without neurovascular injury and other operation complications. Conclusions: Surgical technique of active registration location and 3D printed superficial template for removing cannulated screw on ankle were different from template placed on bone surface. It can not only realize precision but also minimally invasive without cut out skin for placement template on inner of body, while unnecessarily need special printed material with low cost,so it has certain value in clinical application on the operation of removing cannulated screw on ankle.

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  • 收稿日期:2021-05-16
  • 最后修改日期:2021-10-24
  • 录用日期:2021-12-10
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