Hi, I'm just dropping onto this thread to post a reply to your question about walking normally. I have my own post-op diary under NickiAnn's Crazy Derotational Osteotomies.
It is 6-8 weeks before you can walk without crutches, and after that you could be using one crutch or a cane for another 4-6 weeks. My first osteotomy I was still using one crutch when down the halls of the school where I teach at 14 weeks post-op. My second osteotomy, I was pretty much crutchless by nine weeks out. So there is variation. Walking normally, though, that's another story, expect to limp for months, severely at first then less and less. I am nearly a year out from my last osteotomy (one week post-op on hardware removal) and I still have a slight limp that attribute to continuing muscle weakness.
Hope this helps!