my spirally fractured tib and fib, (or perhaps rather the operation to plate the tibia back together again) took about 13 weeks after the operation to start walking on. I came home from hospital 3 or 4 days after the operation, but I was:
a) quite spaced out on codeine/co-codamol for a week or so afterwards (as in 'oh, its half past four. Where did that last hour just go?')
b) stuck keeping my leg elevated most of the time for a good 2 weeks or so as the swelling and operation meant it swelled up like it felt it would explode if I left it below tummy height for too long. That said, as long as you have a few days to get over the drugs, provided you can get an able bodied helper to collect some stuff for you and organise a workspace around the sofa you might do pretty well working from home, in fact the thing that got me the most was that I got soooooooo booooooored!
You get used to stairs and stuff: a 'satchel' type bag on a shoulder strap that you kan keep the top open on is ery helpful just for moving staff around as obviously its hard to carry it in your hand. And put lots of little 'occasional tables' or similar around the house so you can take big hops and hove your cuppa round the house with you as you go. Unfortunately you will discover that after a couple of weeks you will be perfectly able to hoover, do the dishes and hang the washing out again. 
Oh and get one of these things: they are not breathable so you can't soak away for hours but ace nevertheless.
Happy mending!
[EDIT] oh, and if you do, for goodness' sake stop smoking: it slows up your bone mending (can't remember why, something to do with calcium).
