My general preference is 4-6 weeks (up to 8 weeks) expecting normal healing. I rarely start sooner than 4 due to healing concerns (even if things look good) and have only done this (starting 3-4 weeks post op) a few times due to extenuating circumstances, and only if the healing appears adequate. I ...

I typically wait 3-4 weeks for simulation, starting a week later but the soonest I have done is 2 weeks post-op if healed. 

The healing concerns are all valid. We wait 4 weeks (due to the additional below practical anecdotal reasons), and aim to start within 12 weeks. Path report takes several business days to be returned. OncotypeDX takes about 2-3 weeks to return. Patients like to see their surgeon post-op to disc...

The patient must be healed prior to starting. Typically, this occurs around 3-4 weeks. The risk of poor wound healing and infection is greatly increased when starting before the wound is healed.