atlantodental interval

atlantodental interval

Neuroradiology The distance between the dens and anterior ring of C1, which is ≤ to 3 mm in adults, and ≤ 5 mm in children, which is altered in Pts with atlantoaxial subluxation. See Atlantoaxial subluxation.
References in periodicals archive ?
The atlantodental interval was not apparently widened, and there were no associated fractures.
Some cases are reported to be asymptomatic until the spinal cord is irreversibly compromised at a posterior atlantodental interval of 14 mm or less.