Nasal Anthropometry on Facial Computed Tomography Scans for Rhinoplasty in Koreans

ABSTRACT

BACKGROUND: Cephalometric analysis is essential for planning treatment in maxillofacial and aesthetic facial surgery. Although photometric analysis of the Korean nose has been attempted in the past, anthropometry of the deeper nasal structures in the same population based on computerized tomography (CT) has not been published. We therefore measured three anthropometric parameters of the nose on CT scans in our clinical series of patients. METHODS: We conducted the current retrospective study of a total of 100 patients (n=100) who underwent a CT-guided radiological measurement at our institution during a period ranging from January of 2008 to August of 2010. In these patients, we took three anthropometric measurements the nasofrontal angle, the pyramidal angle, and the linear distance between the nasion and the tip of the nasal bone. RESULTS: The mean nasofrontal angle was 131.14degrees in the male patients and 140.70degrees in the female patients. The mean linear distance between the nasion and the tip of the nasal bone was 21.28 mm and 18.02 mm, respectively. The mean nasal pyramidal angle was 112.89degrees and 103.25degrees at the level of the nasal root, 117.49degrees and 115.60degrees at the middle level of the nasal bone, and 127.99degrees and 125.04degrees at the level of the tip of the nasal bone, respectively. CONCLUSIONS: In conclusion, our data will be helpful in the preparation of silicone implants for augmentation and/or corrective rhinoplasty in ethnic Korean people.