Well I hope I wasn't being too much of a drama queen, hijacking this thread and all. But thanks, Mike for your thoughtful reply. No harm, no foul.
At any rate, going back to the OP, for me, getting rid of the crutches was a gradually process. For the revision I switched to one crutch for longer walks fairly early on (before 2 weeks) and switched to hiking poles around 3 to 4 weeks. Moving around unassisted was also a gradual process: first a bit in the hotel room in Belgium, then around the kitchen and the house, then at the office, etc. Because the HR was sorer at first, I used two crutches for longer walks until about 4 to 5 weeks and then switched to hiking poles. Also, moving around unassisted for short bursts took longer (e.g. it was 3 to 4 weeks before I even felt comfortable moving around the kitchen without a crutch at hand). In both cases I still used 1 crutch (or a cane) occasionaly for getting around until about 7 to 8 weeks, at which point I shelved these items for good. For the revision I continued to use the hiking poles on long hikes until about a year and also used them several times afterwards for rougher mountain hikes with a backpack (I mention this because I never used trekking poles before surgery, so using them was a conscious decision). I'll have to see how this goes for the HR (I'm 10 weeks postop) but things seem to be doing great right now. And yes, in both cases I did complete a five mile hike (without pain) using trekking poles before the six week mark.