It's now been 2 years since my RP "nerve sparing" surgery, and I put that in quotes since I have no been able to have a natural erection since. I can have an erection with Trimix or Quadmix injections, and I have tips on that if anyone is interested. I'd just like to know, does anyone actually retain the ability to have a natural erection after this procedure? I was 58, hard erections before surgery, minimal cancer, non-smoker, exercised regularly, etc, so I should have been a good case for recovery, but, no.