What is a Grabb Oakes Measurement and What Does It Mean? 

That's why I like to measure it dynamically ion flexion and extension. Although, GO > 9mm not that common, so maybe you're somehow not placing the lines in the right spot?

Chris Centeno, M.D. I don’t think so - it’s fairly an easy measurement. I know many Chiari specialists use more than the G-O measurement (Harris, CXA, BDI etc... + Symptoms) What frustrates me is some push a G-O measurement to do traction therapy! As was the case with me. Why not a rotation CT first? If someone has partial articular dislocation? I’m only studying radiology for about 5 mo now Perked my interest since I learned of my instability that No NJ doctor looks for unless they do Prolotherapy... but none at C0. I’m sure my future is with you. Please keep finding new talent that can learn from you! You’re amazing.

Chris Centeno, M.D. oh that was the other thing - I notice some people have Thicker cords! 🤔 not sure what that’s about.