What is the difference between minor and major rhinoplasty?

A minor rhinoplasty would be something very simple such as rasping a very small hump down. A major rhinoplasty would include osteotomies, a tip rhinoplasty and cartilage grafting techniques

HiIt depends.  Some rhinoplasties are truly minor.  I have done 12 minute closed rhinoplasties with almost no down-time.  Most rhinoplasties are not minor even if the final result changes are subtle or minor.  The reality is Rhinoplasty is the most complex surgery in all of plastic surgery and even subtle changes to the nose may require some major work.  The important thing is to be honest with the patient.  Some surgeons use labels to make the surgery seem less threatening.  You see this all the time with facelifts.  Lifestyle lift, bandaid lift, quicklift, mini lift are all such terms used to describe a cheek lift but some sound much gentler than the term "cheek lift."