文档介绍：小耳畸形 The Nagata Technique ? Background First introduced in 1993, the Nagata technique has enjoyed wide ess as an alternative to the Brent major advantage lies in its two-staged approach ? The first stage of the Nagata technique involves : 1. Fabrication and insertion of a cartilage framework 2. Transposition of the lobule This roughly corresponds to the first three stages of the Brent technique First Stage Use the ipsilateral 6th – 9th costal cartilages in fabricating the framework Harvesting of the costal cartilages ? The framework is constructed in three distinct levels or “ floors ” irst floor : the crus helicis 、 fossa triangularis econd floor : the scapha hird floor : the helix 、 antihelix 、 tragus, a ntitragus Fabrication – The 6th and 7th is base frame – The 8th is the helix and crus helicis – The 9th is the superior crus,inferior crus 、 and antihelix Insert the cartilage framework “W” incision on lobule remnant skin flap is elevated to receive the framework