About 2 weeks ago I was diagnosed with instability of c1/c2.
My trauma occurred approx. 6 months ago. I practice Brazilian Jiu Jitsu (BJJ) and while drilling a move at slow speed/no resistance my partner cranked my neck suddenly at full force. I heard a pop and pain was immediate. The pain was muscular (no nervous system symptoms) and I took a solid 3 months off and recently went back to training BJJ. My Ortho appointment was 4 weeks ago, negative findings on all tests (spine xray, CT and MRI). The Doc wanted a flexion/extension xray because the only symptom I have is a clunk every once in a while when I look up and to the right. Xray shows instability of C1/C2. I will get the measurements at my next appt. I recall 6mm as a number.
Ortho Doc says no to any activity and is recommending fusion at C1/C2. He has referred me to a neurosurgeon for a second opinion. I take no pain meds other than OTC NSAID occasionally.
I am bummed and really cant fathom that I am in that much danger based on my symptoms.