I am afraid that the answer to this question is: It depends. In general, the larger the amount of skin and fat that has to be removed the greater the likelihood that drains will be needed. The use of progressive tension sutures alone, without drains, is best reserved for very slender patients with an excess of mostly skin as opposed to fat.
Using progressive tension sutures helps prevent fluid collection, helps contour the abdomen, keeps tension off the scar for a nicer result, and prevents the scar from pulling up. The key to a successful abdominoplasty result is a beautiful belly button and a low hidden scar; the progressive tension sutures help that happen. I think it is great to use progressive tension sutures in most cases...not just for the drains but for the beauty of the final result from your tummy tuck. Dr Rodger ShorttOakville Plastic SurgeonAss't Clin Professor &Director of Cosmetic Surgery Training,McMaster University