ED rates for surgery haven't changed in 20 years

Two years after surgery seems to be talked about a lot . Is that the drop dead date for improvement and it is what it is ?

This is from Catalona's website:

1. Q: Is the treatment of prostate cancer going to destroy a man's sex life?
A: Certainly, some of the current treatments for prostate cancer can affect the sex life, but if the cancer is detected early and patients are treated by an experienced surgeon using nerve-sparing techniques, then for the vast majority, their sex lives will return after surgery – usually beginning within three to six months and then having continued improvement for two to three years.

Other treatments such as radiation therapy and hormonal therapy can have a negative impact on sex life, but they do not uniformly destroy sex life. Also, sexual function can be restored in a lot of different ways now with medications, vacuum erection devices and certain types of injections.

The potential is there for a negative impact on sex life, but many men are successfully treated for prostate cancer and have satisfactory sex lives afterwards.

And farther down:

7. Q: What is the effect on potency of radiation therapy after a RRP?
A: In about 50% of these cases, radiation does damage the cavernosal nerves and erections begin to fade about one year after treatment.

His answer to #7 isn't surprising, being he's a surgeon. His answer to #1 is very "optimistic" to use a mild word, but he was very confident.

Its a complicated issue as we are dealing with an age group where ED factors start to creep in regardless of PCa. I think I'm in the minority here but I do believe that robotic surgery will revolutionize many surgical procedures. To me it is only logical that when a surgeon can control his instrumentation to a fraction of his hand movements it will lead to greater precision. I think part of the problem is that it is still quite a new procedure and many men are subject to a surgeon's learning curve.