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This chapter provides a comprehensive overview of the atlanto-occipital ligaments, crucial structures at the craniovertebral junction, also known as the craniocervical junction (CCJ), that facilitate head movement and stability. The atlanto-occipital ligaments consist of several key structures, including the superficial anterior atlanto-occipital ligament, the anterior atlantooccipital membrane, the atlantooccipital capsular ligament, and the posterior atlanto-occipital membrane. Additionally, the cruciform ligament, which includes the transverse ligament, plays a crucial role in the atlanto-axial joint, along with the alar ligament and the transverse occipital ligament. The lateral atlanto-occipital ligament and Barkow ligament further contribute to the stability of the CCJ. The apical ligament, also known as the ligamentum apicale, connects the tip of the odontoid process to the basion. The tectorial membrane and nuchal ligament are also integral components of this complex structure, providing support and stability while facilitating head movements at the CCJ. This chapter introduces the embryology and development of these ligaments. Elucidating their developmental pathways is crucial for comprehending potential congenital anomalies. In the neuroanatomy and biomechanics section, the chapter pinpoints the functions of these ligaments in providing stability to the CCJ while allowing for a limited range of motion essential for everyday activities. The importance of their structural integrity in preventing excessive movements that may lead to spinal cord injury. Radiographic features are also analyzed in detail, highlighting imaging modalities such as magnetic resonance imaging and computed tomography, which are vital for visualizing these ligaments and diagnosing pathologies. In addition, pathological changes, including ligament injuries, developmental anomalies, and their implications for neurological function, are discussed. Overall, this chapter elucidates the anatomy, function, and clinical significance of the atlanto-occipital ligaments.

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Atlanto-Occipital Ligaments

  • 章节

  • 发表日期：

    2025年

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  • Dengpan Song,
  • Fuyou Guo

摘要

This chapter provides a comprehensive overview of the atlanto-occipital ligaments, crucial structures at the craniovertebral junction, also known as the craniocervical junction (CCJ), that facilitate head movement and stability. The atlanto-occipital ligaments consist of several key structures, including the superficial anterior atlanto-occipital ligament, the anterior atlantooccipital membrane, the atlantooccipital capsular ligament, and the posterior atlanto-occipital membrane. Additionally, the cruciform ligament, which includes the transverse ligament, plays a crucial role in the atlanto-axial joint, along with the alar ligament and the transverse occipital ligament. The lateral atlanto-occipital ligament and Barkow ligament further contribute to the stability of the CCJ. The apical ligament, also known as the ligamentum apicale, connects the tip of the odontoid process to the basion. The tectorial membrane and nuchal ligament are also integral components of this complex structure, providing support and stability while facilitating head movements at the CCJ. This chapter introduces the embryology and development of these ligaments. Elucidating their developmental pathways is crucial for comprehending potential congenital anomalies. In the neuroanatomy and biomechanics section, the chapter pinpoints the functions of these ligaments in providing stability to the CCJ while allowing for a limited range of motion essential for everyday activities. The importance of their structural integrity in preventing excessive movements that may lead to spinal cord injury. Radiographic features are also analyzed in detail, highlighting imaging modalities such as magnetic resonance imaging and computed tomography, which are vital for visualizing these ligaments and diagnosing pathologies. In addition, pathological changes, including ligament injuries, developmental anomalies, and their implications for neurological function, are discussed. Overall, this chapter elucidates the anatomy, function, and clinical significance of the atlanto-occipital ligaments.