Dr. Greene's Answer
With breast reduction surgery, if the nipple is moved it severs the connections to the glands and afterwards nursing is exceedingly unlikely. But if the nipple is protected, most women can breastfeed well, even if a lot of glandular tissue was removed.
I recommend a meeting with a lactation consultant when possible. They can be so helpful at getting nursing going.
Refereneces: Breastfeeding. Eglash A – Dis Mon – 01-JUN-2008; 54(6): 343-411