@snowmass
What regeneration are you hoping for? What is causing your cervical instability? Do you have weak muscles in your neck? Is the alignment of your spine off?

I’m not aware of anything regenerative that would help with stability or remove arthritis. NSAIDs for inflammation, diets that help reduce inflammation, neck brace, etc. may help a little but are not long term solutions. Fusion may be the only long term solution to provide stability and relieve any compression on spinal cord and nerve roots.