Atlantoaxial instability (AAI) is a significant neurosurgical condition most frequently identified in toy breed dogs, stemming from congenital malformations or trauma-induced ligamentous weaknesses ...

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, ...

Atlantoaxial instability (excessive movement between the first and second cervical vertebrae) can be caused by trauma, malignancy and inflammatory or congenital defects. It can present with local pain ...