中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (24): 3779-3783.doi: 10.12307/2021.079

• 数字化骨科 digital orthopedics • 上一篇    下一篇

构建股骨3D数字化模型提出一种新的股骨颈前倾角测量方法

刘建友1,贾中伟2,牛佳伟1,曹鑫杰1,张  栋1,魏  杰2   

  1. 1山西医科大学,山西省太原市   030001;2山西医科大学附属人民医院骨科,山西省太原市   030012
  • 收稿日期:2020-10-10 修回日期:2020-10-13 接受日期:2020-11-21 出版日期:2021-08-28 发布日期:2021-03-05
  • 通讯作者: 魏杰,教授,主任医师,硕士生导师,山西医科大学附属人民医院骨科,山西省太原市 030012
  • 作者简介:刘建友,男,1994年生,四川省会东县人,汉族,山西医科大学在读硕士,主要从事骨科关节方向的研究。
  • 基金资助:
    山西省教育厅研究生联合培养基地人才培养项目(2017JD20),项目负责人:魏杰

A new method for measuring the anteversion angle of the femoral neck by constructing the three-dimensional digital model of the femur 

Liu Jianyou1, Jia Zhongwei2, Niu Jiawei1, Cao Xinjie1, Zhang Dong1, Wei Jie2    

  1. 1Shanxi Medical University, Taiyuan 030001, Shanxi Province, China; 2Department of Orthopedics, People’s Hospital Affiliated to Shanxi Medical University, Taiyuan 030012, Shanxi Province, China
  • Received:2020-10-10 Revised:2020-10-13 Accepted:2020-11-21 Online:2021-08-28 Published:2021-03-05
  • Contact: Wei Jie, Professor, Chief physician, Master’s supervisor, Department of Orthopedics, People’s Hospital Affiliated to Shanxi Medical University, Taiyuan 030012, Shanxi Province, China
  • About author:Liu Jianyou, Master candidate, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
  • Supported by:
    Joint Cultivation Base for Postgraduate Students of Shanxi Education Department, No. 2017JD20 (to WJ)

摘要:

文题释义:
通髁线:股骨远端内、外上髁处,外上髁有一骨性突起,为外侧副韧带附着点,股骨内侧髁有一凹陷,为内侧副韧带附着点,两点的连线称为通髁线,是膝关节测量的重要标志之一。
股骨颈前倾角:即股骨颈轴线与股骨髁额状面(人体冠状面)所成的夹角,是评估股骨发育程度、辅助髋部手术和术后评估髋关节功能等的重要角度之一。

背景:全髋关节置换过程中假体置入的准确性非常重要,经典股骨颈前倾角术中运用时需转化为骨性标志的相对位置,全髋关节置换或翻修术中相关骨性标志可能缺失,希望提出一种新型股骨颈前倾角的测量方法,方便术中加以运用,提高假体置入准确性。
目的:通过股骨3D数字化模型,提出一种新的股骨颈前倾测量方法,结合经典股骨颈前倾角为复杂性人工髋关节置换和翻修术中的股骨柄假体置入提供解剖学数据,提高假体置入准确性。 
方法:以CT检查范围包括双侧股骨的41例患者共计82侧正常股骨为观察对象,患者年龄50-80岁。通过软件分别重建出每例股骨的3D数字化模型后,选取股骨内上髁、外上髁、大转子上最突出点形成的面及股骨颈轴心线,二者形成的线面夹角即为此次新提出的测量股骨颈前倾方法,为便于区分,称其为新型前倾角。分别在重建出的股骨模型上对应取点测量新型前倾角与经典前倾角,收集整理数据,进行统计学分析并找出二者之间的关系。
结果与结论:①经取点测量后,82例股骨数据以性别、左右分组独立行t 检验分析,不同性别、不同侧别之间的经典前倾角相比差异均无显著性意义(P > 0.05),不同性别、不同侧别之间的新型前倾角相比差异均无显著性意义(P > 0.05);②新型股骨前倾角平均值为(7.96±1.11)°,经典前倾角平均值为(13.21±1.28)°,二者线性回归方程为:经典股骨前倾角=10.42°+0.35×新型前倾角;③提示新型前倾角系新提出的一种测量股骨颈的方法,其与经典前倾角均能反映股骨颈前倾,二者在一定范围内存在对应关系,联合二者能多维地展现股骨颈真实前倾情况。

https://orcid.org/0000-0002-0632-1185 (刘建友) 

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程

关键词: ">股骨颈前倾角, 髋关节, 全髋关节置换, 翻修, 假体置入, ">数字化

Abstract: BACKGROUND: The accuracy of prosthesis placement in total hip arthroplasty is very important. The classic femoral neck anteversion should be transformed into the relative position of bone markers, and the relevant bone markers may be missing in total hip arthroplasty or revision. We hope to put forward a new method to measure the anterior inclination of the femoral neck, which can be used conveniently in order to improve the accuracy of prosthesis placement.
OBJECTIVE: To propose a new method for measuring the anteversion of the femoral neck through the three-dimensional digital model of the femur, combined with the classical anteversion angle of the femoral neck, to provide anatomical data for the implantation of the femoral stalk prosthesis during complex hip arthroplasty and revision, and to improve the accuracy of prosthesis placement.
METHODS: A total of 82 normal femurs from 41 patients who underwent CT with bilateral femurs aged from 50 to 80 years old were selected as subjects. After the three-dimensional digital model of the femur was reconstructed by software, the surface formed by the most prominent points on the medial epicondyle, the lateral epicondyle, the greater trochanter and the axis of the femoral neck was selected, and the angle between them was our new method for measuring the anteversion of the femoral neck. This new angle was called New Anteversion angle. The corresponding points were taken to measure the New Anteversion angle and the classical anteversion angle on the reconstructed femoral model, and the data were collected and statistically analyzed to find out the relationship between them. 
RESULTS AND CONCLUSION: (1) The data of 82 cases of femur were independently analyzed by t-test according to sex and orientation groups after point measurement. There was no significant difference in the classical anteversion angle between different genders and different sides (P > 0.05), and there was no significant difference in the New Anteversion angle between different genders and different sides (P > 0.05). (2) The average New Anteversion angle was (7.96±1.11)°; the average classical anteversion angle was (13.21±1.28)°. The linear regression equation was: classical anteversion angle = 10.42 ° + 0.35 × New Anteversion angle. (3) It is concluded that both the New Anteversion angle and the classical anteversion angle of the femoral neck can reflect the anteversion of the femoral neck, and there is a corresponding relationship between them in a certain range, and the combination of the two can show the true anteversion of the femoral neck in many dimensions.

Key words: femoral anteversion, hip, total hip arthroplasty, revision, prosthesis implantation, digitization

中图分类号: