Is atlantoaxial instability good?

Prognosis is good for patients with symptomatic AAI in whom posterior spinal fusion is successful and function returns. Surgery may relieve pain, decrease myelopathy, or both in many patients, with results depending on the severity of symptoms and the cause of instability.

What is an axial joint?

Anatomical terminology. The atlanto-axial joint is a joint in the upper part of the neck between the first and second cervical vertebrae; the atlas and axis. It is a pivot joint. The atlanto-axial joint is of a complicated nature. It consists of no fewer than four distinct joints.

What is atlas and axis joint?

The joint between the atlas and axis is a pivot type of joint. It allows the head turn from side to side. It is also called the atloaxoid joint. The ligaments that serve to support and strengthen this joint are called the capsular; anterior and posterior atlantoaxial; and transverse ligaments.

What is axial disease?

Axial Spondyloarthritis (axSpA) is a chronic, inflammatory rheumatic disease that affects the axial skeleton, causing severe pain, stiffness and fatigue. The disease typically starts in early adulthood, a critical period in terms of education and beginning a career path.

How do you fix atlantoaxial instability?

Surgery is often aimed at fixing the instability by fusing vertebral segments together. Surgery is often aimed at fixing the instability by fusing vertebral segments together. In the case of C1-C2 instability, these two vertebrae are fused posteriorly to limit their amount of movement.

What does atlantoaxial instability mean?

Atlanto-axial instability (AAI) is a condition that affects the bones in the upper spine or neck under the base of the skull. The joint between the upper spine and base of the skull is called the atlanto-axial joint. In people with Down syndrome, the ligaments (connections between muscles) are “lax” or floppy.

What is difference between atlas and axis?

Atlas refers to the topmost vertebra of the backbone, articulating with the occipital bone of the skull while axis refers to the second cervical vertebra, which serves as a pivot for turning the head. Thus, this is the main difference between atlas and axis vertebrae.

What is atlas in human body?

In anatomy, the atlas (C1) is the most superior (first) cervical vertebra of the spine and is located in the neck. It is named for Atlas of Greek mythology because, just as Atlas supported the globe, it supports the entire head. The atlanto-occipital joint allows the head to nod up and down on the vertebral column.

What does atlantoaxial mean?

Medical Definition of atlantoaxial. : relating to or being anatomical structures that connect the atlas and the axis.

What is atlantoaxial instability?

Atlantoaxial Instability Definition. Atlantoaxial Instability is a condition that is characterized by an excess of movement between the vertebrae in the neck known as the atlas and the axis. Speaking of Atlantoaxial instability definition, this condition is considered as a result of an abnormality in the bones or the ligaments.

What is the definition of atlantoaxial instability (AAI)?

Atlantoaxial instability (AAI) is defined as excessive movement at the junction between the spine’s first two vertebrae . It is unclear how common it is. Neurological symptoms, such as dizziness,…