基于临床缺陷改进桡骨远端骨折3D打印夹板:设计及快速无网格分析  

Improved 3D printed splint for distal radius fracture based on clinical defects:design and rapid grid-free analysis

作　　者：李国梁[1] 赵建勇 吕德梁 苏聚玥 刘其林 王铁强 王鑫 Li Guoliang;Zhao Jianyong;Lyu Deliang;Su Juyue;Liu Qilin;Wang Tieqiang;Wang Xin(Department of Minimally Invasive Orthopedics,CangZhou Hospital of Integrated Traditional Chinese and Western Medicine in Hebei Province,Cangzhou061001,Hebei Province,China;Hebei Provincial 3D Printing Technology Innovation Center of Integrated Traditional Chinese and Western Medicine,Cangzhou 061001,Hebei Province,China;Postgraduate School of Hebei University of Chinese Medicine,Shijiazhuang 050091,Hebei Province,China;Austelle Engineering Software(Shanghai)Co.,Ltd.,Shanghai 200070,China;College of Traditional Chinese Medicine,North China University of Science and Technology,Tangshan 063509,Hebei Province,China)

机构地区：[1]河北省沧州中西医结合医院微创骨伤科,河北省沧州市061001 [2]河北省中西医结合医学3D打印技术创新中心,河北省沧州市061001 [3]河北中医药大学研究生学院,河北省石家庄市050091 [4]澳汰尔工程软件(上海)有限公司,上海市200070 [5]华北理工大学中医学院,河北省唐山市063509

出　　处：《中国组织工程研究》2025年第33期7123-7129,共7页Chinese Journal of Tissue Engineering Research

基　　金：河北省卫生健康委员会医学科学研究课题(20240655),课题名称:基于数字设计及3D打印技术的桡骨远端骨折微创治疗方案研究,项目负责人:李国梁。

摘　　要：背景:随着医疗技术的不断发展,桡骨远端骨折的治疗面临着更加精准化和个性化的需求。传统夹板固定方法在临床应用中存在一定的局限性,常出现固定不牢固、易于发生压疮等缺陷。采用快速无网格仿真技术验证改进的3D打印夹板的效能,有望为桡骨远端骨折带来更精准、更有效的治疗方案。目的:探索基于临床缺陷改进的桡骨远端骨折3D打印夹板的设计方法,并采用快速无网格分析验证其临床效能。方法:回顾性分析桡骨远端骨折夹板固定的临床缺陷,并针对性改进设计3D打印夹板,通过计算机辅助设计制图,制作出传统夹板和改进的新型3D打印夹板的数字模型。使用快速无网格分析工具进行仿真分析,计算总体、骨骼、软组织及夹板位移和应力分布情况。结果与结论:①与传统夹板相比,改进的新型3D打印夹板对皮肤的压力比较均衡,具有较好的体表贴合性,没有明显的应力集中;位移更小、移动范围更合理;②通过对临床缺陷进行分析可以设计改进桡骨远端骨折3D打印夹板,快速无网格分析结果验证了改进3D夹板的优势,可为其临床应用提供依据。BACKGROUND:With the continuous development of medical technology,the treatment of distal radius fractures is facing the need for more precise and personalized treatment.The traditional splint fixation method has some limitations in clinical application,which often has defects such as unstable fixation and easy to occur pressure sores.The validation of the improved 3D printed splint with rapid grid-free simulation is expected to lead to more accurate and effective treatment options for distal radius fractures.OBJECTIVE:To explore the design method of 3D printed splint for distal radius fracture based on clinical defect improvement and verify its clinical efficacy by rapid grid-free analysis.METHODS:Clinical defects of splint fixation of extended distal radius fracture were retrospectively analyzed,and 3D printed small splint was designed with specific improvement.The digital models of traditional splint and improved new 3D printed splint were made by Computer Aided Design drawing.Total,bone,soft tissue,and splint displacement and stress distribution were calculated through simulation analysis using rapid grid-free analysis tools.RESULTS AND CONCLUSION:(1)Compared with the traditional splint,the improved new 3D printing splint exerteded more balanced pressure on the skin without obvious stress concentration,and had better body surface adhesion.The displacement was smaller and the movement range was more reasonable.(2)An 3D printed splint based on clinical defect improvement can be designed.Rapid grid-free analysis verifies the advantages of the improved 3D splint,providing a basis for clinical application.

关 键 词：桡骨远端骨折 夹板 3D打印 快速无网格分析 临床缺陷 

分 类 号：R459.9[医药卫生—治疗学] R318[医药卫生—临床医学] TB4[一般工业技术]