Ok this is really a click bait title. It is about nerve repair but it is very unclear if it works because they only got one rat left to prove it. But I wonder

Ok this is really a click bait title. It is about nerve repair but it is very unclear if it works because they only got one rat left to prove it. But I wonder: if you cut a nerve with a scalpel it is very clear where the cut is. But is this also clear with a damaged nerve in the spinal cord? Let's say this method of nerve repair works, would we be able to locate the position of the damage in a nerve?