Does a tummy tuck prevent the ability to obtain 6-pack abs?

A tummy tuck in no way interferes with creating further abdominal definition through exercise.  No worries....

No, a tummy tuck does not prevent the ability to obtain six-pack abs. The operation removes redundant, loose skin and fat in the lower abdomen and the fascial plication tightens the abdominal wall. You are still able to build up your core abdominal muscles after you've fully recovered from the surgery and having a tighter skin envelope over those muscles can help make them more noticeable. Hope that helps and good luck!