Organic farmer, just want to reiterate what F8 said, that radiation can have more side-effects after the prostate has been removed, I suppose because there is nothing there to protect the bowels (prostate sits in front of the bowels). It would be a good question to ask a radiation oncologist, when you weigh your options. We have men here that have really been hurt by salvage radiation, and ones that are doing ok.
If you have patience to search Dr.Myers blog on videos radiation vs surgery, please do, I can guarantee it will be worth it (unfortunately there is no search function on the site):
askdrmyers.wordpress.com/
But I do remember watching one of his videos where he called the approach "well, we´ll take it out, and if it doesn´t work, we´ll do radiation" a wrong approach, saying "why would you subject yourself to side-effects of two procedures when you can defeat the disease by radiation only?". Again, he claims there is time and place for surgery, but that it is no golden standard, like some claim, and data from available studies (surgery vs. radiation) support that they are equally good approaches.
Dr.Charles Myers is a PC survivor himself, with not-so-good stats, and he opted for aggressive radiation, and is fine 10+ yrs down the road. He has an oncology practice specializing in PC, and is one of the most intelligent minds on PC in the world today.
Another point that I wanted to bring up. Only now, we are starting to see some doctors actually try to locate the tumor by very precise scanning equipment that has recently become available and do a more targeted approach (before that it was somewhat blind: radiate prostate or prostate+pelvic reigion). In this way some possibly affected lymph nodes can be identified and added to the field of radiation or taken out surgically if possible. Again, the method is not perfect: there could be micrometastasis in lymph nodes that scans do not identify, or scans can be false-positive, BUT, these are still better than what we had before. Again, these sensitive scanning methods are not a standard, so you would have to ask. If it were me, I would visit a few experts in PC (surgeons, radiation oncologists, oncologists specializing in PC), ask provocative questions and make an educated decision in the end.
Best to you, and we are here if you have more questions.