Pan Yingsen, Qin Feipeng, Shen Yi, Hapulile Ndalyolusha Tileinge, Zhang Haoyang, Ye Xin, Li Shuailin, Li Xiaoming, Yang Chao, Zhou Xiang, Ying Xiaoming
The 3rd Clinical Medical College of Zhejiang, Chinese Medical University, Hangzhou, China.
Zhejiang Chinese Medical University, Hangzhou, China.
Sci Rep. 2025 Feb 3;15(1):4091. doi: 10.1038/s41598-025-88336-2.
Extensive studies on the morphological characteristics of the coccyx, using CT or MRI techniques, have been conducted in some European and Asian countries. However, research on coccyx morphology in China remains scarce. A total of 300 subjects, who underwent sacrococcygeal digital radiological scans at the third affiliated hospital of Zhejiang Chinese Medical University between January 2022 and December 2023, were analyzed in this retrospective study. Modified coccyx morphology classification was applied. Imaging focused on the type of coccyx and the number of coccygeal segments. The subjects exhibited coccyx type III (33.3%), type II (32.7%), type I (16.7%), type IV (16%), type V (0.3%), and type VI (1%). 32 males with coccygeal type II; 76 females with coccygeal type III. Significant differences in coccyx morphology were observed between male and female (p < 0.05). Coccygeal morphology showed correlations with age (p = 0.009), body weight (p = 0.01), and BMI (p = 0.039). Among Chinese adults, type III coccyx is the most common, and the 3-segment configuration is the most prevalent. Coccyx types differ by gender, coccyx morphology is correlated with age, weight, and BMI. Our study lays the foundation for future clinical applications of these findings.
在一些欧洲和亚洲国家，已经使用CT或MRI技术对尾骨的形态特征进行了广泛研究。然而，中国对尾骨形态的研究仍然很少。在这项回顾性研究中，分析了2022年1月至2023年12月期间在浙江中医药大学附属第三医院接受骶尾数字放射扫描的300名受试者。应用了改良的尾骨形态分类。影像学重点关注尾骨类型和尾骨节段数量。受试者表现出尾骨III型（33.3%）、II型（32.7%）、I型（16.7%）、IV型（16%）、V型（0.3%）和VI型（1%）。32名男性为尾骨II型；76名女性为尾骨III型。男女之间尾骨形态存在显著差异（p < 0.05）。尾骨形态与年龄（p = 0.009）、体重（p = 0.01）和BMI（p = 0.039）相关。在中国成年人中，III型尾骨最常见，3节结构最普遍。尾骨类型因性别而异，尾骨形态与年龄、体重和BMI相关。我们的研究为这些发现未来的临床应用奠定了基础。
