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[Repairing large alar defects by using a retro-grade auricular flap]
Fei Fan1, Zong-ji Chen, Chuan-de Zhou
1Plastic Surgery Hospital, Beijing 100041, China.
Zhonghua Zheng Xing Wai Ke Za Zhi = Zhonghua Zhengxing Waike Zazhi = Chinese Journal of Plastic Surgery
|August 2, 2003
Summary
A novel retro-grade auricular island flap, supplied by the inner carotid artery system, offers a safe and effective method for reconstructing large alar defects and significant nasal defects.
Area of Science:
- Plastic Surgery
- Reconstructive Surgery
- Anatomy
Background:
- Large alar defects present significant reconstructive challenges.
- Existing techniques may have limitations in achieving optimal aesthetic and functional outcomes.
Purpose of the Study:
- To evaluate the efficacy of a retro-grade auricular flap for repairing large alar defects.
- To investigate the vascular supply of the auricle for flap design.
Main Methods:
- Anatomical vascular investigation of the frontal, nasal, and temporal regions in 29 adult cadavers using dye injection.
- Design and application of a retro-grade auricular island flap for alar defect repair in 16 patients.
Main Results:
- Detailed vascular mapping revealed the auricle's blood supply originates from the inner carotid artery system via supratrachlear and supraorbital arteries.
- The retro-grade auricular island flap can be reliably based on the supratrachlear and supraorbital arteries through anastomotic networks.
- Successful reconstruction of large alar defects and half-sized nasal defects in all 16 patients.
Conclusions:
- The retro-grade auricular island flap, based on the inner carotid artery system, is a viable and safe option.
- This flap technique provides a reliable solution for complex alar defects and partial nasal reconstruction.