The Second School of Clinical Medicine, Southern Medical University, 253 Industry Avenue, Guangzhou City, Guangdong Province, People's Republic of China.
Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, 466 Middle Xin Gang Road, Guangzhou City, Guangdong Province, People's Republic of China.
Aesthetic Plast Surg. 2022 Oct;46(5):2461-2468. doi: 10.1007/s00266-022-02942-3. Epub 2022 Jun 9.
A filler injection in the nose can be essential but is also dangerous, especially in the nasal cartilage region. To safely and accurately perform a filler injection, surgeons must have detailed knowledge of nasal anatomy.
Associated the vessel branches and the characteristics of different nasal regions to provide suggestions for more suitable injection sites.
Fifty specimens underwent computed tomography (CT) after contrast infusion. Qualified specimens were selected for 3D CT reconstruction. Dissection was performed to confirm the accuracy of the CT data.
The branches of arteries with large diameters, the dorsal nasal artery (DNA) and the lateral nasal artery (LNA) were distributed within the superficial musculoaponeurotic system layer. The DNA was seen in only 58% of specimens. The artery crossed the midline over the upper lateral cartilage in 16% of specimens. The LNA was a constant branch that traversed the nasal tip. The LNA crossed the midline to the contralateral side in 18% of patients. We divided the nasal cartilage dorsum into two regions for easy handling: the supratip region (STR) and the nasal tip region (NTR). The branches distributed in the STR mostly originated from the DNA (81.6%, 40/49), while those in the NTR mostly originated from the LNA.
The vasculature of the nasal cartilage region observed in this study is similar to that observed in previous studies. However, we found that the STR was an advantageous area for filler injection. At the same time, we provided suggestions for more suitable injection methods.
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鼻部填充注射至关重要，但也很危险，尤其是在鼻软骨区域。为了安全、准确地进行填充注射，外科医生必须对鼻部解剖结构有详细的了解。
将血管分支与不同鼻部区域的特征联系起来，为更合适的注射部位提供建议。
对 50 个标本进行了对比增强 CT 检查。选择合格的标本进行 3D CT 重建。对解剖结果进行确认，以验证 CT 数据的准确性。
大直径的动脉分支，即鼻背动脉（DNA）和外侧鼻动脉（LNA），分布于浅肌肉腱膜系统层内。在 58%的标本中观察到 DNA。在 16%的标本中，动脉穿过上外侧软骨越过中线。LNA 是一条恒定的分支，穿过鼻尖。在 18%的患者中，LNA 穿过中线到达对侧。我们将鼻软骨背部分为两个易于操作的区域：鼻尖上区（STR）和鼻尖区（NTR）。分布在 STR 的分支主要来源于 DNA（81.6%，40/49），而分布在 NTR 的分支主要来源于 LNA。
本研究观察到的鼻软骨区域的血管分布与以往研究相似，但我们发现 STR 是填充注射的有利区域。同时，我们为更合适的注射方法提供了建议。
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