Many neuropathy issues, so why so few doctors who know?

I had a lumbar spine surgery that resulted in nerve root injury and neuropathic foot symptoms that were not present before the procedure. When I have raised this with the surgeons involved and with other neurosurgeons and orthopedic surgeons since, the consistent response has been that post-surgical nerve rehabilitation is outside their scope, and none of them could point me toward anyone who could help. A few suggested DRG stimulation, which I researched and found was not appropriate for my type of injury. The rest had nothing to offer at all. I have felt increasingly lost with no specialist and no path forward.

I am not trying to assign blame. I understand that surgical complications fall into a gap between what spine surgeons do and what rehabilitation specialists typically treat. But I need a way forward and I have not been able to find it through the specialists I have access to.

Has anyone here found a type of specialist, whether in physical medicine, rehabilitation, or another field, who works specifically with peripheral neuropathy caused by spinal surgery? Any direction would be genuinely helpful. Thanks