中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (15): 3946-3952.doi: 10.12307/2026.876

• 骨与关节图像与影像Bone and joint imaging • 上一篇    下一篇

距骨不同区域骨小梁形态特征的Micro-CT评估

李  磊1 ,张凤珍1,尹兆正1,伊钰营1,申晓科1,段  博1,王志强1,任小燕2,李  琨1,李志军1,王奇娇1,王  星3,张少杰1   

  1. 内蒙古医科大学,1基础医学院,3数字医学中心,内蒙古自治区呼和浩特市   010110;2内蒙古医科大学附属医院内分泌科,内蒙古自治区呼和浩特市   010110
  • 接受日期:2025-01-09 出版日期:2026-05-28 发布日期:2025-11-07
  • 通讯作者: 张少杰,教授,硕士生导师,内蒙古医科大学基础医学院,内蒙古自治区呼和浩特市 010110 共同通讯作者:王星,副教授,硕士生导师,内蒙古医科大学数字医学中心,内蒙古自治区呼和浩特市 010110
  • 作者简介:李磊,1994年生,内蒙古自治区乌兰察布人,汉族,内蒙古医科大学在读硕士,主要从事解剖和放射医学方面的研究。 共同第一作者:张凤珍,1988 年生,内蒙古自治区兴和县人,汉族,内蒙古医科大学在读硕士,主治医师,讲师,主要从事解剖和放射医学方面的研究。
  • 基金资助:

    国家自然科学基金项目(82360892),项目负责人:张少杰;内蒙古自治区卫生科技计划项目(202201219),项目负责人:张少杰;教育厅科技领先人才和创新团队建设项目(NMGIRT2307),项目负责人:张少杰;教育厅科技领先人才和创新团队建设学校匹配项目(YKD2024TD013),项目负责人:张少杰;内蒙古医科大学重点项目(YKD2022ZD007),项目负责人:张少杰;内蒙古医科大学博士启动基金项目(YKD2023BSQD011),项目负责人:张少杰;内蒙古医科大学“善学人才”(ZY20242102),项目负责人:张少杰


Micro-CT evaluation of trabecular morphology in different regions of the talus

Li Lei1, Zhang Fengzhen1, Yin Zhaozheng1, Yi Yuying1, Shen Xiaoke1, Duan Bo1, Wang Zhiqiang1, Ren Xiaoyan2, Li Kun1, Li Zhijun1, Wang Qijiao1, Wang Xing3, Zhang Shaojie1#br#   

  1. 1Basic Medical College of Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China; 2Department of Endocrinology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China; 3Digital Medical Center of Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China
  • Accepted:2025-01-09 Online:2026-05-28 Published:2025-11-07
  • Contact: Zhang Shaojie, Professor, Master’s supervisor, Basic Medical College of Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China Co-corresponding author: Wang Xing, Associate professor, Master’s supervisor, Digital Medical Center of Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China
  • About author:Li Lei, Master candidate, Basic Medical College of Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China Zhang Fengzhen, Master candidate, Attending physician, Lecturer, Basic Medical College of Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China Li Lei and Zhang Fengzhen contributed equally to this article.
  • Supported by:
    National Natural Science Foundation Project, No. 82360892 (to ZSJ); Inner Mongolia Autonomous Region Health Science and Technology Plan Project, No. 202201219 (to ZSJ); Construction Project of Science and Technology Leading Talents and Innovation Team of Education Department, No. NMGIRT2307 (to ZSJ); School Matching Project for the Construction of Science and Technology Leading Talents and Innovative Teams of Education Department, No. YKD2024TD013 (to ZSJ); Key Project of Inner Mongolia Medical University, No. YKD2022ZD007 (to ZSJ); Doctor Start-up Fund Project of Inner Mongolia Medical University, No. YKD2023BSQD011 (to ZSJ); Inner Mongolia Medical University “Good Scholar”, No. ZY20242102 (to ZSJ) 

摘要:

文题释义:
距骨:是跗骨之一,属短骨,位于胫骨、腓骨和跟骨之间,分头、颈、体三部分。
Micro-CT:为微计算机断层扫描(Micro Computed Tomography)的简写,是在1-100 μm分辨率上显示骨骼的X射线成像方法,可对骨的内部微观结构进行精准测量。

摘要
背景:距骨骨折治疗难度大,易出现多种并发症,导致预后不良,故需进一步了解距骨内骨小梁分布特征及其与骨折发生的关系。

目的:利用Micro-CT技术对距骨标本进行扫描,观测骨小梁结构特征及形态计量学参数,探讨距骨不同区域的骨小梁差异,为距骨骨折的预防、治疗及骨折机制研究提供依据。
方法:选取53例成人距骨标本进行Micro-CT扫描,将影像资料导入Avata软件进行三维重建,通过对距骨头部、颈部、体部3个感兴趣区域内骨小梁的勾选与重建,观察其形态特征,并测量分析不同区域骨小梁形态计量学参数的差异。
结果与结论:①距骨的Micro-CT扫描影像显示其头部和体部的皮质骨较薄,而颈部的皮质骨则相对较厚;颈部的骨小梁分布较为稀疏,而头部和体部的骨小梁则相对致密;②距骨骨小梁的骨体积、骨体积分数、骨小梁模式因子在头部与颈部、体部间比较差异均有显著性意义(P < 0.05);距骨骨小梁的骨表面积、骨表面积组织体积比、骨小梁分离度、分形维数在颈部与头部、体部间比较差异均有显著性意义(P < 0.05);距骨骨小梁的骨小梁厚度在体部与头部、颈部之间比较差异有显著性意义(P < 0.05);距骨骨小梁的骨表面积骨体积比、骨小梁厚度、骨小梁连通性、骨小梁连接密度、各向异性程度、结构模型指数在颈部与头部、体部,头部与体部间比较差异均有显著性意义(P < 0.05);③提示Micro-CT技术能够定量分析距骨不同区域骨小梁形态的计量学参数,距骨的骨小梁形态计量学参数存在区域性差异,颈部的骨小梁数量和强度较低,是最容易发生骨折的部位,从骨小梁分布特征说明了距骨骨折好发于颈部。


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: 距骨, Micro-CT, 骨小梁, 区域差异, 形态计量学参数

Abstract: BACKGROUND: Talus fractures are difficult to treat and are prone to multiple complications, leading to poor prognosis. Therefore, it is necessary to further understand the distribution characteristics of trabeculae in the talus and their relationship with fracture occurrence.
OBJECTIVE: Micro-CT technology was used to scan talus specimens, observe the structural characteristics and morphometric parameters of trabeculae, explore the differences in trabeculae in different regions of the talus, and provide a basis for the prevention, treatment, and study of fracture mechanisms of talus fractures.
METHODS: A total of 53 adult talus specimens were selected for Micro-CT scanning. The imaging data were imported into Avata software for three-dimensional reconstruction. By selecting and reconstructing the trabeculae in the three regions of interest (head, neck, and body of the talus), their morphological characteristics were observed, and the differences in the morphometric parameters of trabeculae in different regions were measured and analyzed.
RESULTS AND CONCLUSION: (1) Micro-CT scans showed that the cortical bone of the head and body of the talus was thinner, while the cortical bone of the neck was relatively thicker. The trabeculae in the neck were sparsely distributed, while those in the head and body were relatively dense. (2) The bone volume, bone volume fraction and trabecular pattern factor of talar trabeculae showed significant differences between the head and the neck, and the body (P < 0.05). The bone surface area, bone surface area to tissue volume ratio, trabecular separation and fractal dimension of talar trabeculae showed significant differences of the neck with the head and the body (P < 0.05). The trabecular thickness of talar trabeculae showed significant differences of the body with the head and the neck (P < 0.05). The bone surface area to bone volume ratio, trabecular thickness, trabecular connectivity, trabecular connection density, degree of anisotropy and structural model index of talar trabeculae showed significant differences of the neck with the head and the body, and between the head and the body (P < 0.05). (3) It is concluded that Micro-CT technology can quantitatively analyze the morphometric parameters of trabecular bone in different regions of the talus. There are regional differences in the morphometric parameters of trabecular bone of the talus. The number and strength of trabeculae in the neck are lower, and it is the most prone to fracture. The distribution characteristics of trabecular bone explain the mechanism of talus fractures occurring frequently in the neck. 

Key words: talus, Micro-CT, trabeculae, regional difference, morphometric parameter

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