Department of Plastic Surgery, Centro Medico TEKNON, Barcelona, Spain.
Dermatol Surg. 2011 Jun;37(6):825-34. doi: 10.1111/j.1524-4725.2011.01942.x. Epub 2011 Apr 4.
The nasal dorsum is a good skin flap donor site for alar reconstructions because of its qualities: appropriate color, texture, and thickness.
An anatomic vascular study on cadaver and the clinical use of the dorsal nasal skin flap, inferiorly based on the nasal septal branches, is reported.
Vascular anatomy of the nasal dorsum was demonstrated in five fresh-frozen latex-injected heads. Fourteen patients were operated of reconstruction of the nasal ala using an inferiorly based dorsal nasal flap.
Nasal septal branches, from the superior labial arteries, give vascular supply to the nasal tip. Connections of these arteries with lateral nasal branches (facial system) and dorsal nasal arteries (ophthalmic system) form a consistent vascular network in the dorsal nasal superficial muscular aponeurotic system and allow to safely raise cutaneous flaps distally based. No total or partial loss of the flaps was observed in clinical use. The donor site was sutured directly in 13 patients and with a skin graft in one.
The inferiorly based dorsal nasal flap provides very good cosmetic and functional results and could be considered an additional adequate surgical option for nasal ala reconstruction, especially when skin from the nasolabial fold, upper lip, and cheek is not available. The authors have indicated no significant interest with commercial supporters.
由于鼻背具有色泽、质地和厚度适宜等特点，是鼻翼重建的良好皮瓣供区。
报道了鼻背的解剖血管研究，以及基于鼻中隔支的鼻背下部皮瓣的临床应用。
在 5 个注入乳胶的新鲜冷冻头颅标本上展示了鼻背的血管解剖结构。对 14 例患者进行了采用鼻背下部皮瓣进行鼻翼重建的手术。
来自上唇动脉的鼻中隔支为鼻尖提供血管供应。这些动脉与侧鼻支（面动脉系统）和鼻背动脉（眼动脉系统）的连接在鼻背浅肌肉腱膜系统中形成了一个一致的血管网络，允许安全地进行远端蒂的皮瓣提起。在临床应用中，没有观察到皮瓣全部或部分坏死。13 例患者直接缝合供区，1 例患者植皮。
鼻背下部皮瓣可提供良好的美容和功能效果，可作为鼻翼重建的另一种有效手术选择，尤其是当鼻唇沟、上唇和脸颊的皮肤不可用时。作者表示没有与商业支持者的重大利益关系。
