For the first few months post-surgery, my penis was definitely in the turtle category. Sat down most of the time I needed to urinate.
Once I began using a vacuum pump, things began to change.....much better blood flow, etc.
Flaccid might be slightly shorter than before, but when erect it seems pretty much the same as before.
Viagra, vacuum pump and injections help a lot...or did/do in my case.
Now 10 months post-surgery.