超长宽比皮下筋膜蒂随意型皮瓣在小耳畸形矫正中耳甲腔创面修复的应用

Application of slender narrow subcutaneous fascia pedicle random flap in repair of the cavity of concha wound

目的探讨超常规长宽比的狭长皮下筋膜蒂随意型皮瓣在轻度小耳畸形修复中耳甲腔创面的修复效果及其成活机制。方法6例先火性轻度小耳畸形忠行，均采用耳甲腔复合组织瓣上旋转移小耳畸形修复术，所形成的耳引腕创而以设计不带知名血管的超长宽比耳前狭长皮下筋膜组织为蒂的侧颌颈部随意型皮瓣修复。皮瓣部坡大面积4．0cm×4．5cm，最小3．0cm×3．0cm，带郎宽1．0～1．5cm，长3．5～4．5cm。结果6例狭长皮瓣全部成活，伤口I期愈合，修复后局部外形满意。结论设计的超长宽比皮下筋膜蒂皮瓣小带知躬血管，且其总体长宽比例远远超过传统随意型皮瓣长宽比例的限度，尤前解剖血管，操作简易，修复后外形满意，因而是修复轻度小耳畸形耳甲腔创面的可取皮瓣。

Objective To introduce the application of slender narrow subcutaneous fascia pedicle flap in repairing the cavity of concha wound in microtia plasty, and to investigate its survival mechanism. Methods The all 6 congenital microtia cases were repaired with the concha compound flap up rotation. The all microtia concha wounds were repaired with the slender narrow pedicle. The lateral maxillocevical fasciotaneous flap with its slender subcutaneous fascia pedlcle located in front of auricle. The size of the flaps ranged from 3.0 cm × 3.0 cm to 4.0 cm× 4.5 cm, The width and length of the pedicle ranged 1.0 1.5 cm and 3.5-4.5 cm. Results 6 cases of the slender narrow subcutaneous fascia pedlcle flaps all survived, with primary wound healing and ideal appearance. Conclusions This Men der narrow subcutaneous fascia pedlcle flap does not contain any major blood vessel, which is dissected easily in the operation. Due to its slender narrow pedicle, the flap rotation is also easy and its coverage area is large, without eat ears. The postoperative appearance （color, lexture, cosmetic aspect）issatis factory. The slender narrow flap is an extraordinary new design and is ideal for the cavity of coneha wound repair in the microtia plasly.