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Aesthetic Plastic Surgery

Published in:

01-08-2018 | Original Article

Bone and Soft Tissue Nasal Angles Discrepancies and Overlying Skin Thickness: A Computed Tomography Study

Authors: Sami Alharethy, Sama Alohali, Ibrahim Alquniabut, Yong Ju Jang

Published in: Aesthetic Plastic Surgery | Issue 4/2018

Abstract

Background

The aim of this study was to derive the normal values for bone and soft tissue nasal angles as well as the overlying skin thickness and to attempt to determine the correlation between differences in bone and soft tissue angles and overlying skin thickness in Middle Eastern patients.

Materials and Methods

Three-dimensional cephalometric analysis was performed for 100 patients who underwent computed tomography of the paranasal sinuses. The nasofrontal angle, pyramidal angle-nasal root, pyramidal angle-tip of the nasal bone, and overlying skin thickness were measured, and the results were analyzed according to sex, age, and body mass index (BMI).

Results

All soft tissue angles were significantly larger than the bone angles, with the mean difference being 11.62°, 30.80°, and 27.05° for the nasofrontal angle (P = 0.000), pyramidal angle-nasal root (P = 0.000), and pyramidal angle-tip of the nasal bone (P = 0.000), respectively. The mean overlying skin thickness was 3.89 ± 1.48 mm at the nasion, 1.16 ± 0.6 mm at the rhinion, and 2.93 ± .97 mm at the nasal tip. Differences in the nasofrontal angle were strongly correlated with the skin thickness at the nasion (P = 0.001).

Conclusion

A simple clinical exam of the soft tissue nasal angles does not reflect the underlying bone angles that will be encountered during rhinoplasty. BMI does not influence nasal shape, and rhinoplasty surgery should take into account the ethnic group, age, and sex of the patient. Surgeons should leave a minor skeletal hump at the end of the nasal bone for Middle Eastern patients.

Level of Evidence IV

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.

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Title: Bone and Soft Tissue Nasal Angles Discrepancies and Overlying Skin Thickness: A Computed Tomography Study
Authors: Sami Alharethy
Sama Alohali
Ibrahim Alquniabut
Yong Ju Jang
Publication date: 01-08-2018
Publisher: Springer US
Published in: Aesthetic Plastic Surgery / Issue 4/2018
Print ISSN: 0364-216X
Electronic ISSN: 1432-5241
DOI: https://doi.org/10.1007/s00266-018-1127-9

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Bone and Soft Tissue Nasal Angles Discrepancies and Overlying Skin Thickness: A Computed Tomography Study

Abstract

Background

Materials and Methods

Results

Conclusion

Level of Evidence IV

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

Background

Materials and Methods

Results

Conclusion

Level of Evidence IV

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