Lateral C1-2 puncture for myelography: posterior approach.
The lateral C1-2 puncture approach for myelography is a modification of the technique for percutaneous radiofrequency cervical cordotomy. Positioning of the needle in the posterior, rather than anterior, one third of the canal avoids injury to anomalous vertebral artery branches which lie in the anterior half of the neural canal at this level.
D006801:Humans; D009192:Myelography / Q000379:methods*; D011187:Posture; D013115:Spinal Canal / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D013129:Spinal Puncture / Q000379:methods*; D014711:Vertebral Artery / Q000033:anatomy & histology / Q000000981:diagnostic imaging