Wow, yikes, 20% does seem low for back. I'm sorry to hear about your failed surgery. I don't wish this back pain on anyone! I hope that further types of intervention can reduce your pain and that over time your nerves get better. That forward flexion is a joke to me. I can't walk a block. Couldn't make it through 1/2 of the commissary yesterday & yet I can reach and touch the floor-almost palms flat! I think one uses hip flexors. My L-1 thru S-1 are jacked w/ radiculopathy. Since my stuff is just starting out-I hope the physicians on the board are competant enough to know that I can't work right now and whatever I do in the future will have limitations. I found that we can be rated on pain too, right? Or is that when there is no causal factor? Anyway, I wish you the best.
Chinook