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atlanto-dental interspace

Congenital laxity of the transverse atlantal ligament producing atlanto-axial subluxation: a case report

August 14, 2014

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 avulsion of the transverse atlantal ligament (TAL). More often, however, the odontoid process will fracture

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