Abstract
ObjectiveThe aim of this study was to measure the soft tissue of the external nasal base in Han Chinese women and identify indices with which to simplify morphological assessment.MethodsThis study involved 155 Han women in China. The control group comprised 101 women, and the surgical group comprised 54 women. Using measurements and analytical software, we measured the nasal base on photographs in the two groups. The nasal base was also measured preoperatively and postoperatively in the surgical group. Results from the two groups were compared with a t test.ResultsThe proportion index of the nasal tip triangle (upper nasal base) was c-prn/a = 0.33 ± 0.05 ≈ 1:3. The proportion index of the nostril trapezoidal (lower nasal base) was c-sn/all-alr = 0.25 ± 0.04 ≈ 1:4. The proportion indices of the nasal tip triangle and the nostril trapezoidal were larger in the postoperative surgical group than in the control group. Therefore, the nasal base morphology became stereoscopic through surgical correction.ConclusionThe current study provides a credible and objective reference for cosmetic nasal surgery. The proportion indices related to the nasal base can be used to intuitively and vividly ascertain the nasal base morphology.Level of evidenceIII.
Highlights
The nose is a prominent part of the face and affects an individual’s physical appearance
Proportion indices related to the nasal base From the basilar view, we suggest that the nasal base includes both the upper part and the lower part (Yang et al 2012)
Through comparison of preoperative and postoperative data in the surgical group, we found that the nasal base height increased after surgery, the inter-alar angle and inter-axial angle decreased, and the nasal base protrusion-width index simultaneously increased
Summary
The nose is a prominent part of the face and affects an individual’s physical appearance. Anthropometric studies of different ethnic groups in recent years have found racial differences in the size, shape, and proportion of the nose. Measurement techniques used in such studies include body measurement, computerassisted digital photographic measurement, and three-dimensional laser scanning (He et al 2009; Aung et al 2000; Li et al 2014). These techniques are used to obtain line and angle measurements and calculate the proportion index
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