Congenital laxity of the transverse atlantal ligament producing atlanto-axial subluxation: a case report
An anterior atlanto-dental interspace (ADI) of greater than 3mm in an adult indicates atlanto-axial subluxation (AAS) and instability. A number of pathological processes are known to cause AAS. Trauma, specifically injuries with a component of hyperflexion, may produce sprain or…