Table 1. Revision rhinoplasty preoperative assessment classification.

	Class 1: refinement	Class 2: completion	Class 3: structural	Class 4: major
Complexity	Minor	Low	Moderate	Highest
Primary result Outcome	Good	Incomplete	Poor	Worst
Previous revisions	No	No	Sometimes	Yes
Needs advanced tip reconstruction	Minor	No	Often	Yes
Needs valve repair	No	Variable	Yes, internal or external	Yes, both internal and external
Expected number of cartilage grafts	0–1	1–3	1–3	≥3
Septal cartilage present	N/A	Yes	Sometimes	No
Nasal septal perforation	No	No	Seldom	Variable
Needs revision septoplasty	No	Septum intact, cartilage present	Sometimes	Often
Needs costal cartilage	No	No	Sometimes	Yes
Needs fascia grafts or ADM	Variable	No	Sometimes	Often
SSTE concerns	Variable	No	Sometimes	Yes
Open vs. endonasal	Variable	Open preferred	Open	Open

Abbreviations: ADM, acellular dermal matrix; SSTE, skin and soft-tissue envelope.