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  • Title: [Improve the appearance of auriculocephalic angle in reconstructed auricular with skin flap of residual ear in patients with microtia of concha cavity].
    Author: Zhang Y, Liu J.
    Journal: Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi; 2020 Jul 15; 34(7):915-918. PubMed ID: 32666738.
    Abstract:
    OBJECTIVE: To explore the reasonable utilization of residual ear tissue after total ear reconstruction with total expansion method in patients with microtia of concha cavity, in order to obtain the best appearance. METHODS: The clinical data of 150 patients with microtia of concha cavity between January 2012 and January 2017 were retrospectively analyzed. There were 92 males and 58 females, with an average age of 11.1 years (range, 6.5-35.0 years). The shallow upper auriculocephalic angle was found after the first stage expander embedding and the second stage total expansion, and the third stage auricular reconstruction was carried out 6-12 months later. The residual earlobe was transferred through Z-plasty to reconstruct the lobe. An arc incision was made to release and deepen the upper auriculocephalic angle. And then a skin flap pedicled on the upper part of the residual ear was formed and then transferred to cover the wound on the auriculocephalic angle. The residual ear cartilage tissue flaps with subcutaneous tissue pedicle were inserted into the lacuna under the framework to increase the height of the scaffold. The remaining residual ear skin flaps were sutured to cover the wound of concha. RESULTS: A epidermis blister in diameter of 0.5 cm was found in 1 patient's flap at 7 days after operation, and healed after 2 weeks of dressing change. The other patients' flaps survived well. All the patients were followed up 6-12 months, with an average of 9.6 months. The auriculocephalic angle in the upper part of the reconstructed ear was obviously deepened, the height of the reconstructed ear was increased. The symmetry of the ears was better than before. The concha was not obviously contracted and the appearance of the reconstructed ear was satisfactory. The hair on the upper surface of the reconstructed ear decreased obviously, and the hairline around the ear moved up. CONCLUSION: The transfer of the upper residual auricular skin flap and residual auricular cartilage in patients with microtia of concha cavity can not only deepen the auriculocephalic angle, but also increase the height of the upper framework. The symmetry between the reconstructed auricle and the normal auricle is better than before. 目的: 探讨对先天性耳甲腔型小耳畸形患者行全扩张法全耳再造术后，利用残耳皮瓣改善再造耳颅耳沟的效果。. 方法: 回顾分析 2012 年 1 月—2017 年 1 月收治的 150 例先天性耳甲腔型小耳畸形患者。其中男 92 例，女 58 例；年龄 6.5～35.0 岁，平均 11.1 岁。采用一期扩张器埋置、二期全扩张法全耳再造术后发现上部颅耳沟浅显；于 6～12 个月后行三期再造耳修整。将残耳垂通过“Z”字改型转移以再造耳垂。在残耳上部作蒂在轮屏切迹的残耳上部皮瓣，弧形切开松解并加深上部颅耳沟，将上部残耳皮瓣向颅耳沟创面旋转推进缝合以覆盖创面；将带皮下组织蒂的残耳软骨组织瓣插入支架底部形成的腔隙内，并缝合固定，以增加支架的高度；耳甲腔区其余残耳皮瓣用以覆盖耳甲腔创面。. 结果: 术后拆线时 1 例患儿皮瓣远端出现直径约 0.5 cm 的表皮水疱，经换药 2 周后愈合；其余患者皮瓣成活良好。患者均获随访，随访时间 6～12 个月，平均 9.6 个月。再造耳上部颅耳沟均明显加深，再造耳支架高度不同程度增加，双耳对称性佳，耳甲腔无明显挛缩变小，再造耳外观满意。再造耳上部表面毛发明显减少，耳周发际线上移。. 结论: 采用耳甲腔型小耳畸形的残耳皮瓣及残耳软骨瓣转移，不仅可加深颅耳沟，而且可增加上部支架的高度，术后颅耳沟变形较轻，再造耳与正常耳廓的对称性更佳。.
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