Atlantoaxial Instability (AAI): A condition characterized by excessive movement between the first two cervical vertebrae, which can lead to neurological complications. Klippel-Feil Syndrome (KFS ...

Atlantoaxial instability (AAI) is a condition primarily affecting small breed dogs, particularly those with congenital predispositions. It involves instability at the atlantoaxial joint ...

Eight patients had atlanto-axial instability. Six had interlaminar fusion between atlas and axis. No serious complications were seen. Stability was obtained in all patients postoperatively.