C1 Posterior Arch Flare Point: A Useful Landmark for Fluoroscopically Guided C1-2 Puncture.
Miriam E PeckhamLubdha M ShahA C TsaiEdward QuigleyJustin A CramerT A HutchinsPublished in: AJNR. American journal of neuroradiology (2018)
The C1 posterior arch flare point accurately approximates the dorsal spinal cord margin on myelography. Targeting between the flare point and the spinolaminar line, at the mid-C1-2 interspace, allows safe and optimal needle positioning.