国人正常膝关节几何学及其参数的测量

THE GEOMETRY AND MEASUREMENTS OF PARAMETERS OF NORMAL KNEES IN CHINESE

为建立国人正常膝关节三维解剖模型 ,并对其参数进行测量 ,对正常膝关节进行三维CT扫描 ,按身高不同分为 3组 (15 6～165cm ,166～ 175cm ,176～ 185cm) ,每组各获得 6个正常左右膝关节数据 ,综合每组同侧 6个膝得出一个典型的膝关节三维解剖模型 ,并对其线性、角度等 15项指标进行测量。结果建立了典型的膝关节三维解剖模型 ;膝关节的线性尺寸之间、身高与线性尺寸之间均有很好的相关性 ;角度指标是相对独立的一组指标。研究表明 。

The purpose of this study was to found a three dimensional anatomical model of normal knees in Chinese and to carry out measurements of the relating parameters with this model. Three dimensional CT scan of 18 normal Chinese (36 knees) were acquired. All the cases were divided into three groups according to the height of each individual (156～165cm, 166～175cm, 176～185cm), with each group consisting of 6 individuals (12 knees). Data of the 6 ipsilateral knees were integrated to create a typical three dimensional anatomical model. Altogether 15 parameters including the linear and the angular indices were measured through this model. The results showed: (1) Most anatomical characteristics of the knee of typical Chinese population could be covered by the 3 D model we established; (2) There were stable positive relationships between different linear parameters and between the linear parameters and the body height; (3) The angular parameters were comparatively independent. This well developed 3 D model could provide a reliable method on the measurements of the knee geometry in Chinese people.