It may take as long as a year
for the function restoration. Your doctor could prescribe you
sildenafil, to stimulate erection, penile injections and vacuum pumps help. It is only the ability to have erections rigid enough for intercourse that gets affected not the orgasm, or ability to enjoy sex. Orgasms post surgery is dry since seminal vesicles and prostate gland responsible for ejaculatory fluid are removed. Hope this helps. Take care.