Ghorbani Jahangir, Safavi Naeini Ali, Mehrparvar Golfam, Doroudinia Atsa, Kahkouee Shahram, Emami Habib
Chronic Respiratory Diseases Research Center, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Department of Otolaryngology Head and Neck Surgery, Masih Daneshvari Hospital, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Iran J Otorhinolaryngol. 2020 Sep;32(112):295-301. doi: 10.22038/ijorl.2020.42574.2391.
Rhinoplasty is one of the most common surgical procedures performed among Iranians. An important issue to be considered by nasal surgeons is anatomical variations between different ethnic groups. Working on Iranians with the existing ethnic variety encourages the need for an analysis of this particular population.
The present cross-sectional observational study was conducted on Iranian patients who underwent primary open rhinoplasty at a university hospital in Tehran, Iran. The preoperative evaluations included routine aesthetic analysis as well as the measurement of the subcutaneous fat thickness (using ultrasound imaging) and the angle between the anterior nasal spine and the alveolar process of the maxilla. Intraoperative assessments were performed on the alar rim-inferior border of lateral crus distance, maximal width of lateral crus, connection pattern of upper lateral cartilage, and lower lateral cartilage. Alar cartilage thickness was measured with microscopic evaluation. Moreover, the similar studies conducted on other ethnic groups were reviewed as well.
In total, 66 cases were included in the study (41 females and 25 males) who were within the age range of 18-38 years old (27.82±5.51). According to the results, nasolabial angles were 93.68°±7.82° and 92.25°±6.98° in females and males, respectively. In addition, a significant correlation was found between the anterior nasal spine-maxilla angle and nasolabial angle (P<0.05). Moreover, the findings revealed a significant but weak negative correlation between alar subcutaneous fat thickness and alar cartilage thickness (0.0002). Maximal width of lateral crus was found to be 11.44mm±2.02 and 10.41 mm±1.72 in males and females, respectively.
Despite the differences observed between various ethnic groups, drawing a definiteconclusion about these variations needs comparative studies with similar samples (cadaver vs. patients) and measurement techniques.
隆鼻手术是伊朗人最常进行的外科手术之一。鼻外科医生需要考虑的一个重要问题是不同种族之间的解剖学差异。针对具有现有种族多样性的伊朗人开展研究，促使我们有必要对这一特定人群进行分析。
本横断面观察性研究针对在伊朗德黑兰一家大学医院接受初次开放式隆鼻手术的伊朗患者进行。术前评估包括常规美学分析以及皮下脂肪厚度测量（使用超声成像）和鼻前棘与上颌牙槽突之间的角度测量。术中评估包括外侧脚鼻翼缘-下缘距离、外侧脚最大宽度、上外侧软骨和下外侧软骨的连接方式。通过显微镜评估测量鼻翼软骨厚度。此外，还回顾了对其他种族进行的类似研究。
本研究共纳入66例患者（41名女性和25名男性），年龄在18至38岁之间（27.82±5.51）。结果显示，女性和男性的鼻唇角分别为93.68°±7.82°和92.25°±6.98°。此外，鼻前棘-上颌角度与鼻唇角之间存在显著相关性（P<0.05）。此外，研究结果显示鼻翼皮下脂肪厚度与鼻翼软骨厚度之间存在显著但较弱的负相关性（0.0002）。男性和女性外侧脚的最大宽度分别为11.44mm±2.02和10.41mm±1.72。
尽管观察到不同种族之间存在差异，但要对这些差异得出明确结论，需要与类似样本（尸体与患者）和测量技术进行比较研究。
