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KMID : 1195620240170010056
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Clinical and Experimental Otorhinolaryngology
2024 Volume.17 No. 1 p.56 ~ p.63
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Differences in Nasal Shapes and the Degree of Changes Over a Decade or More: A Paired Analysis
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Kim Young-Hac
Park Joo-Hyun
Park Min-Hae
Lee Eun-Kyu
Hong Sang-Duk
Jung Yong-Gi
Ryu Gwang-Hui
Kim Hyo-Yeol
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Abstract
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Objectives. This study investigated age-related differences in nasal morphometry and the degree of changes within an indi-vidual over at least a 10-year period by pairing previous and recent three-dimensional reconstructed computed to-mography (CT) images.
Methods. Forty-eight adult Korean patients who underwent at least two CT scans of the nasal region with an interval ofat least 10 years were selected. Patients were categorized into six subgroups according to sex and age (20?39 years,40?49 years, and ≥50 years) at the time of initial imaging. Eight nasal parameters were measured on the initial andrecent images, and paired comparisons between the two images were performed based on the data. The differences inthe degree of change by age were also analyzed.
Results. Over an average image interval of 12 years, men exhibited an increase in the nasofrontal angle (3.2°±5.4°, P =0.041),profile nasal length (1.7±1.7 mm, P =0.002), and nasal bridge height (1.2±1.6 mm, P =0.002). Conversely, they showeda decrease in the nasofacial angle (?2.3°±2.9°, P =0.010). Women also demonstrated an increase in the nasofrontalangle (2.5°±5.2°, P =0.010), profile nasal length (1.4±1.9 mm, P <0.001), and nasal bridge height (1.3±1.6 mm,P <0.001). However, they exhibited a decrease in the nasofacial angle (?2.0°±2.1°, P <0.001), glabella angle (?9.1°±9.8°, P <0.001), and pyriform angle (?8.5°±10.1°, P <0.001). With the exception of the nasal bridge height (P =0.036)and pyriform angle (P =0.022), the degree of changes in most parameters did not show significant differences acrossage groups.
Conclusion. Our findings indicate that the aging nose exhibits a greater nasal length with inferior angulation of the nasaltip, with an increase in the nasofrontal angle, profile nasal length, and nasal bridge height, along with a decrease inthe nasofacial angle. The degree of most nasal morphologic changes demonstrated no significant differences by spe-cific age group.
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KEYWORD
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Aging, Acquired Nose Deformity, Esthetics, Matched Pair Analysis, Computer Generated 3D Imaging
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FullTexts / Linksout information
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Listed journal information
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