Hi and welcome. Try googling but they are against this as increases the risk factor for cancer. I am in the same boat and this is what my doctor said to me also. I did not have removal but radiation. What was your Gleason score?
Gleason was 3+4=7
I assumed after 13 years it would not be a problem. I did a Google search and came up with conflicting info. There is a 2013 article (Testosterone Replacament Therapy in Patients with Postate Cancer after Radical Prostatectomy) by American Urological ***'n. that says, "...testosterone therapy is effictive...followed by increase in PSA, does not appear to increase cancer recurrence rates, even in men with high risk prostate cancer." It suggests vigorous surveillance protocol .
I would not take the chance.
Same thing wife says. Cancer is in the trash can at the hospital, don't bring it back!