Getting Tummy Tuck and Nose Job Together Safe?

A rhinoplasty at the same time as a tummy tuck is done for the right patient. That is determined by your chosen plastic surgeon.
I would limit the procedure time to a maximum of 6 hrs. Anything longer, you may want to do as two separate procedures. However with the post-op recovery, I would recommend one-two week help with the children.
I perform the tummy tuck first, followed by the septoplasty/rhinoplasty as an outpatient surgery. With two procedures, I include a 24hr nurse for immediate post-op care at home.
I would recommend a board certified plastic surgeon comfortable with both the tummy tuck and rhinoplasty. Also see more than one plastic surgeon in consultation.

Thank you for your question. A tummy tuck and nose job are great
procedures to combine as you will have a single recovery. It is a bigger procedure and you may want to consider a night in the
hospital. I would consult with a board certified plastic surgeon in your
area to discuss your options in more detail, review if there are any
medical reasons to stage the procedure. If they deem you are healthy to
have have the combined procedure, then you will only have one recovery.

Combining 2 or more procedures in order to reduce recovery time is a good option in very specific circumstances: your surgeon should feel comfortable that he can perform the procedures in a reasonable amount of time, you should be in good health can be able to medically tolerate a longer anesthetic, you should be aware of any additional risks, and the procedures should be straight forward so that there is a very low chance of coming across any surprises during the procedure, which can occur in cases for example that are redos (if this is your second or third nose procedures for example). If in doubt, you can always split these into 2 procedures-- you should feel fine 7-10 days after the septoplasty/rhinoplasty, and about 7-14 days after the tummy tuck. In the end, it is really up to you and your surgeon and as long as you are both realistic about the goals and limitations of doing the procedures together, it's probably ok to do so.

It is possible and safe to combine nasal surgery with tummy tuck, though I wouldn't recommend it. Although your rationale makes sense (one recovery as opposed to two), the recovery is fairly miserable. The one patient on whom I've performed this combination didn't like me too much for the first couple of weeks after surgery. Her abdomen was tight and she walked over stooped, but at the same time, had difficulty breathing out of her nose because of swelling and mild nose bleeds. Although her pain wasn't significantly worsened, she generally complained of feeling uncomfortable.
Hope this helps. Best of luck.

These days, it is quite common to perform one or more cosmetic procedures at the same operation.  Which operations "can go" with another is something to discuss with your surgeon.  There is surgical judgement as to what procedureshe/she feel comfortable performing together.

The overall imperative should be safe surgery.   Does your surgeon feel it is safe in his/her hands to perform the procedures you want together.