Assertion: nasal septum's cartilage | /r/HasProperty | killian incision
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text: An incision is then made along the caudal margin of the quadrangular cartilage through the membranous septum (hemitransfixion incision) or approximately 1–2 cm posterior to the columella along the quadrangular cartilage (Killian incision) based upon the area of deviation (anterior cartilaginous vs. posterior bony) and surgeon preference.