Can a pregnancy cause complication with corrected intestinal malrotaion, can the LAD bands break or move causing a new complication or an old one?

Yes-but. Any abdominal surgery leads to scar tissue (adhesions). Lad's bands refers specifically to the type seen before fixing the problems with malrotation. So is a complicated answer, but most women have normal pregnancies who have had prior abdominal surgery. Best is to tell your ob, and together you can decide if a high risk OB (maternal-feto medicine specialist) needs to be involved.