Ideal positioning of the lower lateral cartilages associated with the optimization of the external nasal valve
Introduction: The Lower Lateral Cartilages (LLC) positioning is directly related to good nasal functionality. When these cartilages have cephalic malpositioning, the lateral wall of the external nasal valve is not adequately supported, which can lead to valvular insufficiency. The objective...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Cirurgia Plástica
2022-06-01
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| Series: | Revista Brasileira de Cirurgia Plástica |
| Subjects: | |
| Online Access: | http://www.rbcp.org.br/export-pdf/3132/en_v37n2a14.pdf |
| _version_ | 1827609048424382464 |
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| author | Eduardo Nascimento Silva Therency Kamila dos Santos Lydia Masako Ferreira |
| author_facet | Eduardo Nascimento Silva Therency Kamila dos Santos Lydia Masako Ferreira |
| author_sort | Eduardo Nascimento Silva |
| collection | DOAJ |
| description | Introduction:
The Lower Lateral Cartilages (LLC) positioning is directly related to good nasal functionality. When these cartilages have cephalic malpositioning, the lateral wall of the external nasal valve is not adequately supported, which can lead to valvular insufficiency. The objective is to define the ideal anatomical positioning of the LLC associated with optimizing the external nasal valve.
Methods:
Review narrative literature in the following databases: SciELO, LILACS and Medline. The descriptors used were: “nasal cartilages,”; “nasal obstruction,” and “rhinoplasty,” being selected 15 essential articles for the understanding of the subject. Literature review: Positioning the lateral crura of the LLC forms the contour of the nasal tip and provides stability to the lateral wall of the external nasal valve. Constantian defined the ideal positioning of the lateral crura of the LLC at the margin of the nasal alae should be 45° or less. For Toriumi, the angle is measured from the lateral crura of the LLC concerning the midsagittal plane, and the appropriate value is approximately 45°. For Silva, the positioning of the LLC is measured by the angle of divergence between the LLCs, and its appropriate value is approximately 90°.
Conclusion:
The external nasal valve works better when the LLCs are well-positioned, namely: the angle formed between the lateral edge of the LLCs and the alar margin is close to 45° or less; the angle formed between the LLC and the midsagittal plane is close to 45°; the divergence angle formed between the LLC is close to 90°. |
| first_indexed | 2024-03-09T07:25:35Z |
| format | Article |
| id | doaj.art-e96c8af5ec55438eb56a64c8f6d9ff4e |
| institution | Directory Open Access Journal |
| issn | 1983-5175 2177-1235 |
| language | English |
| last_indexed | 2024-03-09T07:25:35Z |
| publishDate | 2022-06-01 |
| publisher | Sociedade Brasileira de Cirurgia Plástica |
| record_format | Article |
| series | Revista Brasileira de Cirurgia Plástica |
| spelling | doaj.art-e96c8af5ec55438eb56a64c8f6d9ff4e2023-12-03T07:06:08ZengSociedade Brasileira de Cirurgia PlásticaRevista Brasileira de Cirurgia Plástica1983-51752177-12352022-06-01370222823210.5935/2177-1235.2022RBCP0036Ideal positioning of the lower lateral cartilages associated with the optimization of the external nasal valveEduardo Nascimento Silva0Therency Kamila dos Santos1Lydia Masako Ferreira2Universidade Federal de São Paulo, São Paulo, SP, BrazilUniversidade Estadual de Ponta Grossa, Ponta Grossa, PR, BrazilUniversidade Federal de São Paulo, São Paulo, SP, BrazilIntroduction: The Lower Lateral Cartilages (LLC) positioning is directly related to good nasal functionality. When these cartilages have cephalic malpositioning, the lateral wall of the external nasal valve is not adequately supported, which can lead to valvular insufficiency. The objective is to define the ideal anatomical positioning of the LLC associated with optimizing the external nasal valve. Methods: Review narrative literature in the following databases: SciELO, LILACS and Medline. The descriptors used were: “nasal cartilages,”; “nasal obstruction,” and “rhinoplasty,” being selected 15 essential articles for the understanding of the subject. Literature review: Positioning the lateral crura of the LLC forms the contour of the nasal tip and provides stability to the lateral wall of the external nasal valve. Constantian defined the ideal positioning of the lateral crura of the LLC at the margin of the nasal alae should be 45° or less. For Toriumi, the angle is measured from the lateral crura of the LLC concerning the midsagittal plane, and the appropriate value is approximately 45°. For Silva, the positioning of the LLC is measured by the angle of divergence between the LLCs, and its appropriate value is approximately 90°. Conclusion: The external nasal valve works better when the LLCs are well-positioned, namely: the angle formed between the lateral edge of the LLCs and the alar margin is close to 45° or less; the angle formed between the LLC and the midsagittal plane is close to 45°; the divergence angle formed between the LLC is close to 90°.http://www.rbcp.org.br/export-pdf/3132/en_v37n2a14.pdfnasal obstructionnosenasal cartilagesrhinoplastybreathing |
| spellingShingle | Eduardo Nascimento Silva Therency Kamila dos Santos Lydia Masako Ferreira Ideal positioning of the lower lateral cartilages associated with the optimization of the external nasal valve Revista Brasileira de Cirurgia Plástica nasal obstruction nose nasal cartilages rhinoplasty breathing |
| title | Ideal positioning of the lower lateral cartilages associated with the optimization of the external nasal valve |
| title_full | Ideal positioning of the lower lateral cartilages associated with the optimization of the external nasal valve |
| title_fullStr | Ideal positioning of the lower lateral cartilages associated with the optimization of the external nasal valve |
| title_full_unstemmed | Ideal positioning of the lower lateral cartilages associated with the optimization of the external nasal valve |
| title_short | Ideal positioning of the lower lateral cartilages associated with the optimization of the external nasal valve |
| title_sort | ideal positioning of the lower lateral cartilages associated with the optimization of the external nasal valve |
| topic | nasal obstruction nose nasal cartilages rhinoplasty breathing |
| url | http://www.rbcp.org.br/export-pdf/3132/en_v37n2a14.pdf |
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