What are the chances of a permanently failed nose job?

if you see an experienced rhinoplasty surgeon the chances of a botched rhinoplasty is virtually zero. I have done rhinoplasty for more than 35 years without a botched nose. You are worrying about something that is not realistic. 

Every surgeon will have cases where the improvement might be disappointingly small, but if the operation is done well, the chances of a really bad result are vanishingly minute.Click on the "Web reference" link, just below my response, or go here:

FacialSurgery.com/RealSelf/RealSelf_All_Treatments.html

That page contains a discussion of how to tell whether your surgeon is good enough to operate on your nose..









I usually make computer morphs when I'm answering questions like this, to show the changes that are possible for your nose with a rhinoplasty. For example see this page:FacialSurgery.com/RealSelf/RealSelf_Morphs.html









But you didn't submit any photos, and the photos from your previous post are too small. At the *very* bottom of the Web reference page is a link to instructions on taking photos that are most useful for online consultations like this, in case you'd like a more complete evaluation.

Thanks for your question and concern. In the end it all depends on who you choose as your surgeon. Complications you mentioned are extremely rare in well trained hands. Interview a few surgeons and ask them questions which concern you. You will get a good idea during your consultations.