It is a pivot joint that provides 40 to 70% of axial rotation of the head. [1] There is a pivot articulation between the odontoid process of the axis and the ring formed by the anterior arch and the transverse ligament of the atlas. There are three atlanto-axial joints: one …

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.

2023年6月12日 · Atlantoaxial instability can be classified into three generalized categories: inflammatory, congenital, and traumatic. The "Rule of Spence" classically determines the stability of C1 fractures by measuring the lateral overhang of the lateral masses of C1 on C2 when viewing an AP radiograph.

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 atlantoaxial joint (AAJ) links the first cervical vertebra, known as the atlas (C1), to the second cervical vertebra, termed the axis (C2), forming the most flexible section of the spine. This joint consists of three synovial joints: a single median pivot joint and two lateral plane 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10月28日 · The atlantoaxial joint is an important "transitional zone" in the cervical spine prone to instability by both degenerative and traumatic processes Pathophysiology

2024年9月26日 · The atlantoaxial joint is a complex joint between atlas (c1) and axis (C2) which helps with axial rotation allowing our head to turn left and right and is supported by a complex set of ligaments and muscles.

2023年3月31日 · The atlantoaxial joint is a specific joint with multiple distinct structural parts donating to its crucial function for cervical stability & mobilization. It consists of 3 distinct, synovial joints: one medial joint & two lateral atlantoaxial joints.

The atlantoaxial joint is a pivot synovial joint between the atlas and axis vertebrae. The vertebrae communicate with each other at three separate synovial joints; two lateral plane synovial joints and one median pivot joint.