负压引流技术在外耳再造中的临床应用

Clinical application of negative pressure drainage in ear reconstruction

目的探讨负压引流技术在外耳再造中的应用方法及价值。方法应用皮肤软组织扩张器法行外耳再造术215例(225耳),均应用负压引流技术,术后记录引流量,随访3个月～2年,观察再造耳郭形态。结果一期(扩张器植入)术后8例出现术腔血肿,二期(外耳再造)术后11例出现不同程度的血肿,无皮瓣坏死及软骨支架液化吸收。11例因不同原因出现再造耳不同程度的变形,其余再造耳的大小、形状与健耳相似,耳甲腔、三角窝等结构清晰。结论在外耳再造中,负压引流技术在减少术区血肿形成、塑形再造耳方面有重要作用。

Objective To investigate the application method and value of negative pressure drainage in ear reconstruc- tion. Methods Negative pressure drainage was used in ear reconstruction of 215 cases （225 ears） by soft tissue expand- er. After operation the amount of fluid from the negative pressure drainage was recorded everyday. All cases were fol- lowed-up for three months to two years, and the shape of the reconstructed ears was observed. Results After expander implantation, hematoma occurred in 8 cases. After the ear reconstruction, hematoma occurred in 11 cases in various de- grees. Although 11 cases had different degrees of deformation in constructed ears during follow-up period, the construc- ted ears in the other 204 cases showed similar size and shape to healthy ones, and the structure of the ear cavity and tri- angular fossa was clear. Conclusions Negative pressure drainage is significant to decrease the incidence rate of hema- toma and shape the reconstructed ears in ear reconstruction.