摘要目的 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例先天性轻度小耳畸形患者,均采用耳甲腔复合组织瓣上旋转移小耳畸形修复术,所形成的耳甲腔创面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.皮瓣部最大面积4.0 cm×4.5 cm,最小3.0 cm×3.0 cm,蒂部宽1.0～1.5 cm,长3.5～4.5 cm.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不带知名血管,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,无需解剖血管,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.

abstractsObjective To introduce the application of slender narrow subcutaneous fascia pedicle flap in repairing the cavity of conchs 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 maxillocevicai 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 slender 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 cat ears.The postoperative appearance (color,lexture,cosmetic aspect)is satisfactory.The slender narrow flap is an extraordinary new design and is ideal for the cavity of concha wound repair in the microtia plasty.