Sex-Based Differences in the Anthropometric Characteristics of the Anterior Cruciate Ligament and Its Relation to Intercondylar Notch Geometry
Sex-Based Differences in the Anthropometric Characteristics of the Anterior Cruciate Ligament and Its Relation to Intercondylar Notch Geometry
复制标题
前十字韧带人体测量特征的性别差异及其与髁间切迹几何形状的关系
DOI：
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发表时间：
2005
影响因子：
4.8
通讯作者：
J. Hashemi
中科院分区：
文献类型：
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作者：
N. Chandrashekar;J. Slauterbeck;J. Hashemi
背景与相应的男性人群相比，参与体育活动的女性发生前交叉韧带损伤的比例明显更高。造成这种差异的原因尚不清楚；然而，基于性别的前交叉韧带几何形状、形态特征和髁间切迹大小的差异被认为是可能的因素。假设(1)女性前交叉韧带的长度比男性短，横截面积和体积比男性小。(2)女性前交叉韧带肿块密度较低。(3)在男性和女性种群中，韧带大小与缺口宽度成正比。研究设计描述性实验室研究。方法采用三维成像系统测量10例男性和10例女性供体（均为高加索人）前交叉韧带的长度、面积和体积等几何参数。膝关节前平面弯曲90°的数字图像用于测量切口大小。将韧带从附着部位移除后，用数字天平测量其质量。几何参数、质量密度和缺口大小根据性别进行比较。对韧带大小与人体测量特征、切迹大小与韧带大小进行相关性分析。结果女性前交叉韧带的长度、横截面积、体积和质量均小于男性。韧带肿块密度在两性间无显著差异。此外，雌雄种群在缺口几何形状上没有发现差异。切迹大小和韧带大小在男性中有相关性，但在女性中没有。结论由于女性和男性前交叉韧带的密度相似，女性的韧带尺寸较小可能导致其韧带损伤的发生率较高。前交叉韧带的大小在男性中随切迹宽度的增加而增加，而在女性中没有。
Background A significantly higher rate of anterior cruciate ligament injuries occurs in women involved in sports activities compared to the corresponding male population. Reasons for this disparity are not well understood; however, sex-based differences in the geometry of the anterior cruciate ligament, its morphologic characteristics, and the intercondylar notch size have been cited as possible factors. Hypotheses (1) The anterior cruciate ligament in women has a shorter length, and smaller cross-sectional area and volume than that in men. (2) The female anterior cruciate ligament has a lower mass density. (3) Ligament size is proportional to notch width in both male and female populations. Study Design Descriptive laboratory study. Methods Using a 3-dimensional imaging system, the authors measured the geometric parameters, including length, area, and volume, of the anterior cruciate ligaments of 10 male and 10 female donors (all Caucasian). A digital image of the frontal plane of the knee flexed at 90° was used to measure notch size. After the ligament's removal from its attachment sites, its mass was measured using a digital balance. Geometric parameters, mass density, and notch size were compared based on sex. Correlation analyses between ligament size and body anthropometric characteristics, and between notch size and ligament size were performed. Results The anterior cruciate ligament in women was smaller in length, cross-sectional area, volume, and mass when compared to that in men. No significant difference in ligament mass density was found between the sexes. Also, no differences were found in notch geometry between male and female populations. A correlation between notch size and ligament size was found for men but not for women. Conclusions Because the densities of female and male anterior cruciate ligaments appear to be similar, the smaller ligament size in women may contribute to their having a higher rate of ligament injuries. Anterior cruciate ligament size increases in proportion to notch width in men but not in women.