Can Tummy Tuck Prevent Future Hernias?

The causes of your hernias may just be bad luck and hopefully you'll never have another. But, as you can guess by everyone's answers there's no guarantee that you won't still get another ventral or inguinal hernia. Suturing the muscle fascia, the tissue that surrounds the muscle and holds it in place, doesn't make the muscles stronger. It does reduce the distance between the two rectus muscle and tightens the waist.
So get the tummy tuck, look great and don't worry about hernias. It's out of your hands.

Based on your brief history, you appear to be a good candidate for a tummy tuck. Your limitation may be the mesh that was placed from your previous inguinal hernia repair however, this is not an absolute contraindication to having, and achiving, a good result.
The one thing that a tummy tuck does not guarantee, is the prevention of another hernia in the future. Remember, a tummy tuck is a cosmetic and not a reconstructive surgery.
Discuss your desires with your plastic surgeon and be comfortable with your decision. This will ensure you have the information necessary to make the right choice for you.