Just to add my two penneth. I am now Two and a half years post op.I was supposedly non nerve sparring but still get tumescence of the penis, but sadly no standing to attention. My surgeon said it is possible my network of nerves have made a new connection or were not in the "normal" location.
My on going stricture has meant the use of the pump has been quite rare but when I have used it I can still get a pre op length and girth. There was a suggestion that use of the pump might be aggregating the stricture, so follow the advice of waiting for the joint to heal.
I have been prescribed daily sildenafil and although it does not work as it would with a fully nerved/ complete male it has helped keep my penis healthy, exercise of the penis has probably also helped to maintain the health of the penis.
Finally,You do not need an erection to have intercourse and we have mastered the technique of flacid intercourse.
All the best for your treatment and recovery.
Thanks Chris