Rotational obstructions of the vertebral artery at the atlantoaxial joint

Neuroradiology. 1975 Aug 7;9(3):117-20. doi: 10.1007/BF00332957.


Two patients with vertebrobasilar ischemia are described in whom angiography demonstrated obstruction of one vertebral artery at the C1-2 level on rotation of the head. The possible anatomical explanation and physiological significance of this finding are discussed.

Publication types

  • Case Reports

MeSH terms

  • Axis, Cervical Vertebra
  • Cerebrovascular Circulation*
  • Cervical Atlas
  • Head
  • Humans
  • Ischemia / etiology*
  • Joints
  • Male
  • Middle Aged
  • Movement
  • Radiography
  • Rotation
  • Vertebral Artery / diagnostic imaging
  • Vertebral Artery / physiopathology*