2023年10月30日 · The atlantoaxial joint is a complex joint between the atlas (C1) and the axis (C2). It is composed of three synovial joints; one median atlantoaxial joint and two lateral atlantoaxial joints. The median atlantoaxial joint is formed between the dens of axis and an osteoligamentous ring of the atlas anteriorly and transverse ligament posteriorly.

The atlanto-axial joint is a joint between the atlas bone and the axis bone, which are the first and second cervical vertebrae. It is a pivot joint that provides 40 to 70% of axial rotation of the head.

The atlanto-axial joint, consisting of the atlas (C1) and axis (C2), plays a vital role in enabling cervical spine rotation but lacks the bony stability found in the lower cervical vertebrae.

2023年8月28日 · The atlantoaxial joint is a unique joint with multiple distinct structural aspects contributing to its crucial function for cervical stability and mobilization. It consists of three distinct synovial joints: one medial joint and two lateral atlantoaxial joints.

2024年8月20日 · The atlanto-axial articulation is a complex of three synovial joints, which join the atlas (C1) to the axis (C2). The atlanto-axial joint allows 10-15 o of flexion/extension, 30 o of axial rotation and only minimal lateral flexion. There are a number of congenital anomalies which can affect the atlas, axis and the joint between the two:

2024年9月5日 · There are two joints unique to the cervical spine – the atlanto-axial (x3) and atlanto-occipital joints (x2). The atlanto-axial joints are formed by the articulation between the atlas and the axis: Lateral atlanto-axial joints (x2) – formed by the articulation between the inferior facets of the lateral masses of C1 and the superior facets of C2.

2023年6月12日 · The atlantoaxial joint is the most mobile joint, with several critical neurovascular structures traversing through it. The atlantoaxial segment consists of the atlas (C1) and axis (C2) and forms a complex transitional structure bridging the occiput and cervical spine.