二维有限元法分析THA术前试模的重要性 |
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引用本文: | 刘洋,王文波,赵哲,于宏伟.二维有限元法分析THA术前试模的重要性[J].中国当代医药,2010,17(34):30-31. |
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作者姓名: | 刘洋 王文波 赵哲 于宏伟 |
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作者单位: | [1]哈尔滨医科大学附属第二医院ICU,黑龙江哈尔滨150086 [2]哈尔滨医科大学附属第一医院骨科,黑龙江哈尔滨150001 [3]哈尔滨医科大学附属第三医院骨科,黑龙江哈尔滨150040 |
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摘 要: | 目的:通过全髋关节置换术(THA)术前试模与否与术后有限元模型的建立及力学分析,探讨术前试模的重要性。方法:选取行单侧THA的24例患者作为研究对象,将其分为两组(试模组和对照组),行THA,术后对患髋摄X线正位片,其原始数据输入有限元软件建立二维有限元模型,并进行力学分析、绘制应力曲线,与正常股骨近端的应力曲线进行比较。结果:试模组的股骨近端生物力学分析优于对照组,其应力曲线图较对照组更接近正常。结论:THA术前精确的试模能够使术后的股骨近端应力分布更接近正常。
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关 键 词: | 全髋关节置换术 二维有限元分析 术前试模 |
THA dimensional finite element analysis of the importance of preoperative test mode |
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Authors: | LIU Yang WANG Wenbo ZHAO Zhe YU Hongwei |
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Institution: | 1.Department of ICU,Second Affiliated Hospital of Harbin Medical University,Heilongjiang Province,Harbin 150086,China;2.Department of Orthopaedics,First Affiliated Hospital of Harbin Medical University,Heilongjiang Province,Harbin 150001,China;3.Department of Orthopaedics,Third Affiliated Hospital of Harbin Medical University,Heilongjiang Province,Harbin 150040,China) |
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Abstract: | Objective:Through artificial total hip arthroplasty(THA) or preoperative and postoperative tested mode model and finite element mechanical analyzed of the importance of preoperative test mode.Methods:24 patients underwent unilateral THA patients as research subjects would be divided into two groups(test module and the control group),the line THA,taken after suffering from hip anteroposterior X ray film,the original data entry of a limited element software to create two-dimensional finite element model,and the mechanical analyzed,draw stress curve,and the normal stress curve of the proximal femur were compared.Results:The test module biomechanical analyzed of the proximal femur than the control group,the stress curve was closer to normal than the control group.Conclusion:THA accurate preoperative test mode enables the proximal femur after stress distribution close to normal. |
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Keywords: | Total hip arthroplasty Two-dimensional finite element analysis Preoperative test mode |
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