Can members and readers please comment on how long their nerve pain went on after there fusions. Mine started about 3 weeks after surgery. It could have been there all along but the surgical pain was greater than the nerve pain at that time. I have just started gabapentin and I am at 10 weeks out of surgery. I have read nerves regenerate for up to a year, but have also read on this site I believe that if sciatica does not resolve by 3 months its likely to stay. Anyone keep having improvement after 3 months? My surgeon didn't use BMP.