生物骨科材料与临床研究2023，Vol.20Issue(6)：9-13,19,6.DOI:10.3969/j.issn.1672-5972.2023.06.002
钉道强化股骨近端防旋髓内钉治疗高龄Seinsheimer Ⅴ型股骨转子下骨折的有限元分析
Bone cement augmented proximal femoral anti-rotation nail for Seinsheimer type V subtrochanteric femoral fractures in elderly:A finite element analysis
摘要
Abstract
Objective To investigate the feasibility of bone cement augmented proximal femoral anti-rotation nail in the treatment of Seinsheimer type Ⅴ subtrochanteric fractures in the elderly.Methods The CT data of one volunteer was imported into Mimics 19.0 and Geomagic studio 2017 to extract and optimize the 3D model of the right femur.Draw internal fixation model and assembled with femur model according to the standard operation technology,then imported into Hypermesh 14.0 software to simulating Seinsheimer type Ⅴ subtrochanteric fractures.The cancellous bone around the proximal helical blade was redefined as bone cement,obtaining bone cement augmented proximal femoral anti-rotation nail model.The material property parameters,boundary conditions,and applied loads were set and imported into LS-DYNA software for solution.Results ①Compared with the common proximal femoral anti-rotation nail model,the helical blade of the bone cement augmented proximal femoral anti-rotation nail model had no cutting,and the varus and rotation angle of the head and neck bone block was smaller.Although the local stress was slightly larger,the whole was more stable.②The strong anchoring force of bone cement can stabilize the helical blade,improve the inner action point of the three-point support,and transmit and disperse the pressure.Conclusion Compared with the common proximal femoral anti-rotation nail,the bone cement augmented proximal femoral anti-rotation nail could effectively reduce the varus rotation of the head and neck bone block in the treatment of Seinsheimer type Ⅴ subtrochanteric fractures in elderly patients,avoid the cutting of the spiral blade,and offer enhanced stability.关键词
钉道强化股骨近端防旋髓内钉/骨质疏松/Seinsheimer Ⅴ型股骨转子下骨折/有限元分析Key words
Bone cement augmented proximal femoral anti-rotation nail/Osteoporosis/Seinsheimer type Ⅴ subtrochanteric femoral fractures/Finite element analysis分类
临床医学引用本文复制引用
陈心敏,黄涛,周勇,刘舒畅,张宇迪,范文科,陈盼,郭志,袁丁,罗石,周帅..钉道强化股骨近端防旋髓内钉治疗高龄Seinsheimer Ⅴ型股骨转子下骨折的有限元分析[J].生物骨科材料与临床研究,2023,20(6):9-13,19,6.基金项目
湖北省荆门市科技局引导性项目(2021YDKY002) （2021YDKY002）
