Lim S Y, Mun G H, Hyon W S, Bang S I, Oh K S
Department of Plastic and Reconstructive Surgery, Samsung Medical Center, SungKyunKwan University School of Medicine, Ilwon-dong 50, Seoul 135-710, South Korea.
J Plast Reconstr Aesthet Surg. 2006;59(5):505-9. doi: 10.1016/j.bjps.2005.10.008. Epub 2006 Feb 3.
During the second stage reconstruction of the auricle in patients with microtia, we modified Nagata's method and two technical improvements were possible. After the implanted auricle was separated from the bed, we harvested the temporoparietal fascial flap through helical rim incision instead of incising the temporal scalp. So the surgical scar over the temporal region was avoided. Thereafter, a costal cartilage wedge was carved and grafted to the posterior aspect of the conchal region to get a firm projection. But in cases of unavailable costal cartilage wedge graft, we used a resorbable plate composed of polylactic and polyglycolic acid as a substitute for the former so that we could create firm elevation and sufficient ear projection. Between June 2002 and May 2004, 28 patients underwent this operation with the temporoparietal fascial flap and resorbable plating system. There was no complication resulting from our technique. It was possible to create firm elevation and good frontal projection even if there was no available cartilage wedge. Additionally, by harvesting the temporoparietal fascia through helical rim incision, we avoid creating additional scars on the scalp.
在小耳畸形患者耳廓二期再造术中,我们改良了Nagata法,并实现了两项技术改进。在将植入的耳廓与床分离后,我们通过耳廓边缘切口采集颞顶筋膜瓣,而非切开颞部头皮。这样就避免了颞部区域的手术瘢痕。此后,雕刻一块肋软骨楔并移植至耳甲腔区域的后方,以获得一个坚实的凸起。但在无法使用肋软骨楔移植的情况下,我们使用由聚乳酸和聚乙醇酸组成的可吸收板替代前者,以便能够形成坚实的隆起和足够的耳部凸起。在2002年6月至2004年5月期间,28例患者接受了使用颞顶筋膜瓣和可吸收接骨板系统的该手术。我们的技术未引发任何并发症。即使没有可用的软骨楔,也能够形成坚实的隆起和良好的正面凸起。此外,通过耳廓边缘切口采集颞顶筋膜,我们避免了在头皮上产生额外的瘢痕。