Abstract：
BACKGROUND: Lacking a nasal tip projection is a common deformity of Asian nasals. Various commonly used nasal tip grafts require dissecting septal perichondrium, most of them are autologous cartilage with a nonintegrated design. A snake-shaped expanded polytetrafluoroethylene (ePTFE) nasal tip graft is an integrated, stable tip graft without any additional assembly and splicing, conforming to the nasal anatomy characteristics of Asians.
METHODS: A retrospective study was performed on Asian patients who underwent rhinoplasty in the nasal tip at Peking University Third Hospital from 2015 to 2022. Nasal tip grafts were categorized into three groups: snake-shaped ePTFE combined with conchal cartilage (n = 15), only costal cartilage (n = 25), and only conchal cartilage (n = 17). Patients were excluded if their rhinoplasty did not involve any of the grafts above. Visual Analogue Scale, FACE-Q Nose, FACE-Q Nostril, Nasal Obstruction Symptom Evaluation scale, and Rhinoplasty Outcome Evaluation scale were used to evaluate the preoperative and postoperative results.
RESULTS: Fifty-three (93.0%) cases had low nasal dorsum and 46 (80.7%) cases had short nose. There was no significant difference in complication rates among the three groups. The difference between preoperative and postoperative scale scores was statistically significant among the three groups (p < 0.05). Score improvements, including all scales, were the highest in the costal cartilage group and lowest in the conchal cartilage group.
CONCLUSIONS: Snake-shaped ePTFE nasal tip grafts can be an effective integrated alternative that provides long-term safety and efficacy compared with traditional autogenous implants (conchal and costal cartilages).
METHODS: A retrospective study was performed on Asian patients who underwent rhinoplasty in the nasal tip at Peking University Third Hospital from 2015 to 2022. Nasal tip grafts were categorized into three groups: snake-shaped ePTFE combined with conchal cartilage (n = 15), only costal cartilage (n = 25), and only conchal cartilage (n = 17). Patients were excluded if their rhinoplasty did not involve any of the grafts above. Visual Analogue Scale, FACE-Q Nose, FACE-Q Nostril, Nasal Obstruction Symptom Evaluation scale, and Rhinoplasty Outcome Evaluation scale were used to evaluate the preoperative and postoperative results.
RESULTS: Fifty-three (93.0%) cases had low nasal dorsum and 46 (80.7%) cases had short nose. There was no significant difference in complication rates among the three groups. The difference between preoperative and postoperative scale scores was statistically significant among the three groups (p < 0.05). Score improvements, including all scales, were the highest in the costal cartilage group and lowest in the conchal cartilage group.
CONCLUSIONS: Snake-shaped ePTFE nasal tip grafts can be an effective integrated alternative that provides long-term safety and efficacy compared with traditional autogenous implants (conchal and costal cartilages).
摘要：
背景：缺乏鼻尖突起是亚洲鼻部常见的畸形。各种常用的鼻尖移植物需要解剖中隔软骨膜，它们中的大多数是具有非整合设计的自体软骨。一种蛇形膨体聚四氟乙烯(ePTFE)鼻尖移植物,稳定的尖端移植物，无需任何额外的组装和拼接，符合亚洲人的鼻部解剖特征。
方法：回顾性研究2015-2022年北京大学第三医院接受鼻尖隆鼻的亚洲患者。鼻尖移植物分为三组：蛇形ePTFE结合牙甲软骨（n=15），只有肋软骨（n=25），只有耳甲软骨(n=17)。如果患者的鼻成形术不涉及上述任何移植物，则将其排除在外。视觉模拟量表,FACE-Q机头,FACE-Q鼻孔,鼻塞症状评价量表,术前、术后结果评价量表。
结果：53例（93．0％）鼻背低，46例（80．7％）鼻短。三组间并发症发生率差异无统计学意义。术前、术后量表评分三组间差异有统计学意义(p<0.05)。分数改进，包括所有的尺度,肋软骨组最高，耳甲软骨组最低。
结论：蛇形ePTFE鼻尖移植物可以是一种有效的综合替代品，与传统的自体植入物（牙甲和肋软骨）相比，它提供了长期的安全性和有效性。
方法：回顾性研究2015-2022年北京大学第三医院接受鼻尖隆鼻的亚洲患者。鼻尖移植物分为三组：蛇形ePTFE结合牙甲软骨（n=15），只有肋软骨（n=25），只有耳甲软骨(n=17)。如果患者的鼻成形术不涉及上述任何移植物，则将其排除在外。视觉模拟量表,FACE-Q机头,FACE-Q鼻孔,鼻塞症状评价量表,术前、术后结果评价量表。
结果：53例（93．0％）鼻背低，46例（80．7％）鼻短。三组间并发症发生率差异无统计学意义。术前、术后量表评分三组间差异有统计学意义(p<0.05)。分数改进，包括所有的尺度,肋软骨组最高，耳甲软骨组最低。
结论：蛇形ePTFE鼻尖移植物可以是一种有效的综合替代品，与传统的自体植入物（牙甲和肋软骨）相比，它提供了长期的安全性和有效性。
