If there is a ventilation disorder in the nose due to a crooked nasal septum, a wide septum, enlarged turbinates/nasal cavernous bodies or a nasal skeleton that is too narrow or crooked, a complete rearrangement of the cartilaginous and bony nasal skeleton is part of the functional operation. The hump must also be removed and the nasal tip cartilage must be stabilized and straightened. The change in shape and the patient’s wishes, which play a major role in this, are of course discussed in detail beforehand in the 3D simulation.