I will bet that the relapse actually is shorter than the 27 yrs., it took 27 years to find enough or to have an issue that became detected and/or found. Likely it was there long ago but took this long to become aggressive and Gleason 10. Having orechtomy along with surgery would naturally be helpful against PCa, even done by itself as some patients have done so. Surely for having surgery and then having your _uts literally cut off has lost favor with the public, if everyone were told today that this is standard surgery(today), probably more radiations and alternative treatments would find customers.
This also shows why the words cure, and "we or I got it all" should be not be said to a patient in haste or so easily spoken out. I noticed ,what I believe is the wiser and/or better docs do not actually come out say such words. They may say control or longevity and such verbage.
I literally cringe when I see posters or their wives go on and on about the surgeon says he got it all. Totally ridiculous, he cannot see PCa cells (unless it is tons of it) and cannot see beyond where he operated, etc. So with this limited wisdom the doc is going to say I got it all???? Maybe he bragging he got all the prostate out, even that task is difficult but kind of a no brainer (as that is why you went to him). Maybe the I got it all means the insurance money or payment(lol), then I agree totally, yeah you got it all. Not against surgery as a realistic choice, just be totally informed and straight up about risks, rewards, side effects, healing issues and time frames etc. (look beyond the docs sugar coated words, via using books, internet, second opinion(s), forums and such). The truth will set you free.