I am sorry you are having so much pain. Has anyone explained to you how slow the nerve regeneration process can be? Here is an explanation from Mayo Clinic: https://www.mayoclinic.org/diseases-conditions/peripheral-nerve-injuries/symptoms-causes/syc-20355631

When I had a revision of my TKR after tissue damage by the failed original implant, it took the nerve over 2 years to heal completely, though I did not have pain as much as numbness and tingling. Now, 10 years later, I still feel sensitivity and tingling along the area of damage if I touch it, but apparently my brain has learned to mostly ignore it.

Also, remember that nerves heal/regenerate at a VERY slow rate - typically 1-2mm/day, or about 1/4 inch per month.

What have your docs suggested as a next step?
Sue