My uro/surgeon and I talked about this very subject once, more than a year ago. He said that he typically only removes what is needed in the lymph nodes, they do a spot check during surgery, and it the closest ones appear "clean", they don't remove any more. Sure this varies on the number and conditon of the particular patient. He said removing all of them, if not needed, isn't worth the risk of possible deep infections and complications after the fact. Kind of made sense to me.
This is exactly what my surgeon did.
PSA quadrupled in one year (0.6 to 2.6)
DRE negative Retested at 3 months
1 of 12 biopsies positive (< 5%) G6
open surgery June 2006 at age 57
Organ-confined to one minuscule area, downgraded to G5
Prostate weight 34 grams
PSAs < 0.1