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A micro-CT study of different regions of the atlas / Un estudio de micro-CT de diferentes regiones del atlas
Cao, Zhenhua; Su, Baoke; Wang, Wei; Li, Zhijun; Wang, Haiyan; Wang, Xing; Zhang, Shaojie; Wang, Yidan; Guan, Huanhuan; Gao, Mingjie; Wang, Zhiqiang; Zhang, Yunfeng; Li, Xiaohe; Wang, Yan.
  • Cao, Zhenhua; Chinese People's Liberation Army General Hospital. Department of Orthopaedics. Postdoctoral Workstation. Beijing. CN
  • Su, Baoke; Inner Mongolia Medical University. department of anatomy. Digital Medical Center. Hohhot. CN
  • Wang, Wei; Inner Mongolia People's Hospital. department Emergency. Hohhot. CN
  • Li, Zhijun; Inner Mongolia Medical University. department of anatomy. Digital Medical Center. Hohhot. CN
  • Wang, Haiyan; Inner Mongolia Medical University. department of anatomy. Digital Medical Center. Hohhot. CN
  • Wang, Xing; Inner Mongolia Medical University. department of anatomy. Digital Medical Center. Hohhot. CN
  • Zhang, Shaojie; Inner Mongolia Medical University. department of anatomy. Digital Medical Center. Hohhot. CN
  • Wang, Yidan; Inner Mongolia Medical University. department of anatomy. Digital Medical Center. Hohhot. CN
  • Guan, Huanhuan; Inner Mongolia Medical University. department of anatomy. Digital Medical Center. Hohhot. CN
  • Gao, Mingjie; Inner Mongolia Medical University. department of anatomy. Digital Medical Center. Hohhot. CN
  • Wang, Zhiqiang; Inner Mongolia Medical University. department of anatomy. Digital Medical Center. Hohhot. CN
  • Zhang, Yunfeng; Inner Mongolia Medical University. The second Affiliated Hospital. Hohhot. CN
  • Li, Xiaohe; Inner Mongolia Medical University. department of anatomy. Digital Medical Center. Hohhot. CN
  • Wang, Yan; Chinese People's Liberation Army General Hospital. Department of Orthopaedics. Beijing. CN
Int. j. morphol ; 38(2): 477-480, abr. 2020. tab, graf
Article in English | LILACS | ID: biblio-1056465
ABSTRACT
This study aimed to examine the differences in bone microarchitecture between different regions of the atlas in 28 dry atlas specimens using micro-CT, in order to explain the mechanism of the predilection sites of atlas fractures from the morphological point of view. A total of 28 dry specimens of intact adult atlas were randomly selected, scanned by micro-CT, and divided into a region from the anterior arch midpoint (AAM) to the lateral masses (LM), a LM region, and a region from the LM to the posterior arch midpoint (PAM). Trabecular thickness, separation, number, connectivity, and structure model index were measured for each of the three regions using the built-in software of the CT scanner. Trabecular thickness was all measured to be 0.11 ± 0.00 mm for AAM to LM, LM, and LM to PAM. Trabecular separation AAM to LM > LM to PAM > LM. Trabecular number LM > LM to PAM > AAM to LM. Connectivity LM > LM to PAM > AAM to LM. Structure model index LM > LM to PAM > AAM to LM. A lower trabecular number and connectivity and higher trabecular separation were seen in the anterior and posterior arches of the atlas, in which higher fracture rates were reported. By contrast, a higher trabecular number and connectivity and lower trabecular separation were seen in the lateral masses, in which lower fracture rates were reported.
RESUMEN
Este estudio tuvo como objetivo examinar las diferencias en la microarquitectura ósea entre diferentes regiones del atlas en 28 muestras de atlas secas utilizando micro-CT, con el fin de informar el área de mayor frecuencia en las fracturas de atlas, desde el punto de vista morfológico. Se seleccionaron al azar un total de 28 muestras secas de atlas adultos intactas las que se escanearon por micro-CT y se dividieron en una región desde el punto medio del arco anterior (MAA) hasta las masas laterales (ML), una región ML y una región desde el ML hasta el punto medio del arco posterior (MAP). Se midió el grosor trabecular, la separación, el número, la conectividad y el índice del modelo de estructura para cada una de las tres regiones utilizando el software incorporado del escáner CT. El grosor trabecular se midió en 0,11 ± 0,00 mm para MAA a ML, ML y ML a MAP. Separación trabecular MAA a ML> ML a MAP> ML. Número trabecular ML> ML a MAP> MAA a ML. Conectividad ML> ML a MAP> MAA a ML. Índice del modelo de estructura ML> ML a MAP> MAA a ML. Se observó un menor número de estructuras trabeculares y conectividad y una mayor separación trabecular en los arcos anterior y posterior del atlas, en los que se informaron tasas de fracturas más altas. Por el contrario, se observó un mayor número de estructuras trabeculares y conectividad, y una menor separación trabecular en las masas laterales, en las que se observó un número menor de fracturas.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Cervical Atlas / X-Ray Microtomography Limits: Humans Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2020 Type: Article Affiliation country: China Institution/Affiliation country: Chinese People's Liberation Army General Hospital/CN / Inner Mongolia Medical University/CN / Inner Mongolia People's Hospital/CN

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Full text: Available Index: LILACS (Americas) Main subject: Cervical Atlas / X-Ray Microtomography Limits: Humans Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2020 Type: Article Affiliation country: China Institution/Affiliation country: Chinese People's Liberation Army General Hospital/CN / Inner Mongolia Medical University/CN / Inner Mongolia People's Hospital/CN