Atlanto-axial instability or subluxation

Definition

A condition caused by bony or ligamentous abnormality of the upper spinal column. This condition is characterised by excessive movement at the junction between C1 and C2 vertebrae. This condition may present with impaired rotation of the neck, neurological difficulties, or may be asymptomatic.

Also indexed as

Nearby in Structural developmental anomalies of spine

• LB73.20Klippel-Feil anomaly
• LB73.21Occipitalisation of atlas
• LB73.23Aplasia or hypoplasia of the odontoid process of axis
• LB73.24Segmentation anomalies of vertebrae
• LB73.25Congenital scoliosis due to congenital bony malformation
• LB73.26Sacralisation of the last lumbar vertebra
• LB73.27Lumbarisation of the first sacral vertebra
• LB73.28Sacrum agenesis or hypoplasia