There are prognostication tools called Nomograms, which guess as to the likelihood of recurrence post-prostatectomy. You key in all your details, Gleason score, PSA level, years post op, post-op biopsy report, etc, and it will calculate the statistical chance of recurrence at 5, 10 and 15 years.
When I last checked, had a 70% chance of recurrence within fifteen years, at which point I might have to undergo salvage treatment.
You can check your forecast if you search for ‘MSK Nomogram prostate’.
Cheers, John.