[neverdem]

However, the nerve damage in this article was newly created so I’m left wondering about older injury.

When the spinal column is transected, aka cut, the distal axons degenerate. However the accompanying inflammatory reaction promotes scar tissue formation that the regrowing nerves can't cross. The neurons can't regrow their axons through the fibrotic scar tissue.

[decimon]

When the spinal column is transected, aka cut, the distal axons degenerate. However the accompanying inflammatory reaction promotes scar tissue formation that the regrowing nerves can't cross. The neurons can't regrow their axons through the fibrotic scar tissue.

Snip off the scarred ends and then apply the chitosan stuff?