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Factors affecting nostril shape in Asian noses
Erick G Ducut1, Seung-Kyu Han, Sang-Bum Kim
1Seoul, Korea From the Department of Plastic Surgery, Korea University College of Medicine.
Plastic and Reconstructive Surgery
|November 15, 2006
Summary
Nasal nostril shape in Asian noses is primarily influenced by specific muscle volumes and insertions, along with the lateral crus and footplate segment ratio. These factors differentiate horizontal and vertical nostril types.
Area of Science:
- Plastic Surgery
- Anatomy
- Rhinology
Background:
- Limited research exists on factors influencing nostril shape in Asian populations.
- Understanding these factors is crucial for aesthetic and reconstructive rhinoplasty.
Purpose of the Study:
- To investigate the anatomical determinants of nostril shape in Asian noses.
- To differentiate between horizontal and vertical nostril types based on underlying structures.
Main Methods:
- Dissection of 20 fresh cadaver noses.
- Classification into horizontal and vertical nostril types.
- Analysis of surrounding muscles, alar cartilage, and tip supporting structures.
Main Results:
- Horizontal nostrils showed larger dilator naris anterior and posterior muscles with more extensive insertions.
- Differences in the lateral crus shape and footplate segment ratio were observed between types.
- No significant differences were found in medial crus shape or tip support characteristics.
Conclusions:
- Nostril shape is significantly influenced by the volume and insertion patterns of the dilator naris anterior and posterior muscles, and the depressor septi nasi muscle.
- The shape of the lateral crus and the footplate segment ratio are key differentiating factors for nostril types.
- These anatomical findings provide valuable insights for surgical rhinoplasty in Asian noses.
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