I had a DIEP flap procedure about 3 years ago. Unlike an implant, the DIEP is MAJOR surgery. Mine was done during a VLNT transfer (surgery for lymphedema) and that required accessing the abdominal area which made a DIEP flap procedure more reasonable - I was going to have major surgery one way or the other. So I had the transfer and for reasons that would only apply to me, the flap failed and had to be removed. (rare and not likely to apply to other people).

JMHO, but if you have already had the expander in place I would go with the implant versus the DIEP flap. Abdominal surgery is NOT fun.