Perhaps he doesn't take patients anymore. So what if he only does
open? One gets equivalent results - the experience of the surgeon is the only thing that matters and Catalona is by far the most experienced. They finally did a
randomized study:
"Urinary function scores did not differ significantly between robot-assisted laparoscopic prostatectomy and
open radical retropubic prostatectomy... Sexual function scores were not significantly different ... Equivalence testing on the proportion of patients who had imaging evidence of progression revealed that the two groups were not significantly different.
/www.thelancet.com/journals/lanonc/article/PIIS1470-2045(18)30357-7/fulltext