小耳畸形重建.ppt
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1、小耳畸形,The Nagata Technique,Background First introduced in 1993, the Nagata technique has enjoyed wide success as an alternative to the Brent technique.Its major advantage lies in its two-staged approach,The first stage of the Nagata technique involves : Fabrication and insertion of a cartilage framew
2、ork Transposition of the lobule This roughly corresponds to the first three stages of the Brent technique,First Stage,Use the ipsilateral 6th9th costal cartilages in fabricating the framework,Harvesting of the costal cartilages,The framework is constructed in three distinct levels or “floors” First
3、floor: the crus helicis、fossa triangularis Second floor: the scapha Third floor: the helix、antihelix、tragus, antitragus,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,1.A “W” inci
4、sion on lobule remnant,2.The skin flap is elevated to receive the framework,Bolsters of dental cotton are then used to secure the skin flaps to the cartilage framework. These are affixed with 4-0 monofilament mattress sutures. The bolsters are kept in place for 2 weeks,3.Insert the cartilage framewo
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- 畸形 重建
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