The Role of the Depressor Nasi Septi Muscle in Nasal Air Flow
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ORIGINAL ARTICLE
RHINOPLASTY
The Role of the Depressor Nasi Septi Muscle in Nasal Air Flow Ali Seyed Resuli1
•
Fatih Oktem2 • Sureyya Ataus3
Received: 10 December 2019 / Accepted: 16 March 2020 Ó The Author(s) 2020
Abstract Background Musculus depressor septi nasi and its tendon, the dermocartilaginous ligament, play an important role in external nasal valve and nasal respiration. If the ligament is cut during septorhinoplasty operations, nasal functions of the nose and facial expressions are affected. Therefore, the aim of this study was to investigate the role of M. depressor septi nasi in nasal respiration at open rhinoplasty operations using rhinomanometry and electromyography. Methods The study included 29 patients who had only external nasal deformity (nasal hump deformity). All patients underwent open rhinoplasty. The dermocartilaginous ligament of the patients in the study group (DCL ? group) was repaired but not in the control group (DCL group). Rhinomanometry and electromyography were applied to all patients preoperatively and postoperatively. Results In the DCL - group, right and left nasal airflow values were significantly lower in post-op (562.92 cm3/s and 548.57 cm3/s), whereas right, left, and total nasal resistances were significantly lower in pre-op (0.28 Pa/ cm3/s, 0.22 Pa/cm3/s, and 0.11 Pa/cm3/s). Statistically significant differences were not found between
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s00266-020-01693-3) contains supplementary material, which is available to authorized users. & Ali Seyed Resuli [email protected] 1
Department of ENT, Faculty of Medicine, ˙Istanbul Yeni Yu¨zyıl University, I˙stanbul, Turkey
2
Department of ENT, Cerrahpas¸ a Faculty of Medicine, ˙Istanbul University, ˙Istanbul, Turkey
3
Department of Neurology, Bahat Hospital, Eski Edirne Asfaltı No: 653 Bahat Hastanesi, Sultangazi, I˙stanbul, Turkey
rhinomanometric measurements in pre-op and post-op values of the DCL ? group. Post-op right, left and mean values of M. depressor septi nasi amplitude in the DCL ? group (2.05 mV, 2.0 mV, 2.02 mV) were significantly higher than those in the DCL - group (1.52 mV, 1.61 mV, 1.57 mV). Conclusion Repair of the dermocartilaginous ligament during open rhinoplasty operations enhances nasal respiratory functions by expanding the external nasal valve through M. depressor septi nasi and allows the nose to participate in mimic movements. 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. Keywords Dermocartilaginous ligament Musculus depressor septi nasi Rhinoplasty Pitanguy’s ligament
Introduction Nasal obstruction has a negative effect on quality of life. The internal nasal valve (INV) is the narrowest part of the nose, and the external nasal valve (ENV) is the entrance to the nose. Although there
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