From the Department of Auricular Plastic and Reconstructive Surgery, Chinese Academy of Medical Sciences & Peking Union Medical College Plastic Surgery Hospital and Institute, Beijing, China.
Ann Plast Surg. 2024 Dec 1;93(6):681-686. doi: 10.1097/SAP.0000000000004082. Epub 2024 Aug 28.
The 8th rib cartilage was sometimes insufficient to construct a complete external helix in ear reconstruction for microtia. The aim of this study was to investigate the splicing technique of 8th rib cartilage in modified Nagata method stage I.
Between September 2022 and May 2023, 231 consecutive patients with microtia underwent auricular reconstruction with modified Nagata method stage I. Thirty-four patients with insufficient 8th rib cartilage were screened out by three-dimensional (3D) computed tomography preoperatively, who were included in the study prospectively. The 8th rib was spliced to create the external helix when fabricating the ear framework in the stage I surgery for the 34 patients. The median duration of follow-up was 12.1 months (8-15 months).
There were no perioperative complications in our study. During follow-up, all patients had satisfying outcomes, with no inward collapse, displacement, or absorption of the spliced external helix. The splicing point was not obvious.
It was safe and effective to splice the 8th rib cartilage for external helix of the cartilage framework in ear reconstruction for microtia.
在小耳畸形的耳再造中，第 8 肋软骨有时不足以构建完整的外耳轮。本研究旨在探讨改良 Nagata 法 I 期手术中第 8 肋软骨拼接技术。
2022 年 9 月至 2023 年 5 月，231 例小耳畸形患者采用改良 Nagata 法 I 期行耳廓再造术。术前通过三维（3D）CT 筛选出 34 例第 8 肋软骨量不足的患者，前瞻性纳入本研究。在 34 例患者的 I 期手术中，在制作耳支架时拼接第 8 肋以形成外耳轮。中位数随访时间为 12.1 个月（8-15 个月）。
本研究中无围手术期并发症。随访期间，所有患者的外耳轮拼接部位均无内陷、移位或吸收，拼接点不明显，结果满意。
在小耳畸形的耳再造中，拼接第 8 肋软骨来构建耳支架的外耳轮是安全有效的。
