目的:颈椎或寰椎的最上段(C1)是非常重要的解剖结构,容纳延髓,并包含C1脊神经和椎管的凹槽。C1椎骨的变化会影响上脊柱的稳定性,据报道,形态计量学参数因人群而异。然而,在泰国人中,关于这些参数的数据很少。从未报道过使用这种骨骼来预测性别和年龄。
方法:本研究旨在检查C1形态测量并确定其预测性别的能力。从确定的骨骼的C1椎骨中获取了十二个直径参数(n=104,男性[n,54],女性[n,50]).还对性别和年龄进行了相关分析,这是使用机器学习算法预测的。
结果:结果表明,在男性图谱中,12个测量参数中有8个明显更长(p<0.05),而其余4个(横向孔的两个最内侧边缘之间的距离,上关节面的横向尺寸,额叶平面穿过运河的中点,下关节面的前后尺寸)在性别上没有显着差异。在侧面的这些参数没有统计学上的显着差异。在C1参数上训练了决策树桩分类器,模型预测性别的准确率为82.6%(均方根误差=0.38)。
结论:图谱的形态参数的确定对于术前评估很重要,尤其是治疗寰椎脱位。我们的发现还强调了地图集测量在性别预测中的潜在用途。
OBJECTIVE: The uppermost segment of the cervical vertebra or atlas (C1) is a critically important anatomical structure, housing the medulla oblongata and containing the grooves for the C1 spinal nerve and the vertebral vessels. Variations of the C1 vertebra can affect upper spine stability, and morphometric parameters have been reported to differ by population. However, there are few data regarding these parameters in Thais. The use of this bone to predict sex and age has never been reported.
METHODS: This study aimed to examine C1 morphometry and determine its ability to predict sex. Twelve diameter parameters were taken from the C1 vertebrae of identified skeletons (n = 104, males [n, 54], females [n, 50]). Correlation analysis was also performed for sex and age, which were predicted using machine learning algorithms.
RESULTS: The results showed that 8 of the 12 measured parameters were significantly longer in the male atlas (p < 0.05), while the remaining 4 (distance between both medial-most edges of the transverse foramen, transverse dimension of the superior articular surface, frontal plane passing through the canal\'s midpoint, and anteroposterior dimension of the inferior articular surface) did not differ significantly by sex. There was no statistically significant difference in these parameters on the lateral side. The decision stump classifier was trained on C1 parameters, and the resulting model could predict sex with 82.6% accuracy (root mean square error = 0.38).
CONCLUSIONS: Assertation of the morphometric parameters of the atlas is important for preoperative assessment, especially for the treatment of atlas dislocation. Our findings also highlighted the potential use of atlas measurements for sex prediction.