Zenda - It fascinates me how different the various surgeons are about this. (And I am quite sure there is no one right answer, and that each doctor is choosing the best policy for their patient and/or procedure; I'm not criticizing.)
Brassard likes to have his patients walking by 18 hours afterward, and doing circuits of the hospital or residence every 2 hours after the second day. On the other hand, he discharges people to the residence from the hospital on day 2, and only recommends a stay of 7 days there, unlike Suporn's month of residency.
Considering how stir-crazy people became under *his* regimen, I have SO much sympathy for the people undergoing Suporn's week of bed rest. But of course it's all worth it in the end.