Man. This is a hard one.
(Lord I apologize! But that is funny! I don't care who you are) But since that is the goal, let's talk nerve sparing.
In short.... It does work. I know the surgeon must be skilled in nerve sparing. It does add time in the operating room and the patient must be in good health to stay under that long.
If I am any kind of source of information, I'll try to give you my perspective. Before Surgery I was Never at a loss for erectile function. But after surgery,(nerve sparing) I was heavily DIS functional for a few months. With the use of Viagra I was slowly able to recover a sense of confidence. I must admit it took some time and patience to get back.
It has now been 3 1/2 years since surgery and after the 3 year mark, I can finally say with confidence "I'm Back!" without Viagra.
I am sure there are other guys with stories of "Great Comebacks" But I am pleased with my comeback. I was worth the trip.But the skill of the surgeon determines the outcome indeed.
George