Stapfam's experience is similar to mine except that my doctor wouldn't let me near an upright bicycle for 12 weeks. Like Stapfam, I could only ride 0.4 mile the first time that i got back on a bike. The second time was 0.8 mile. I worked up to 13 miles at about week 14 or so and then after that it wasn't too bad.

FWIW, I had a radical perineal prostatectomy and a cancer that required a large margin removal. Perhaps the robotic surgery is less damaging.

Good luck and best wishes.