Outcomes of ossicular disruption in traumatic facial paralysis: a case series

Abstract

Background

As tympanotomy using the transcanal approach was a routine surgical technique for traumatic ossicular disruption, the efficacy of the posterior tympanum approach was rarely explored.

Aim

This study aimed to investigate whether the hearing outcomes improved after simultaneous ossiculoplasty and facial nerve decompression using the posterior tympanum approach compared with the transcanal approach.

Material and methods

The data of 11 patients who underwent ossiculoplasty and facial nerve decompression using the posterior tympanum approach and 21 patients who underwent ossiculoplasty via transcannal approach were analyzed.

Results

The average air–bone gap (ABG) of patients undergoing posterior tympanotomy showed a statistically significant improvement. Postoperative ABG within 20 dB was observed in 81.8% of patients in the posterior tympanum group and 76.2% of patients in the transcanal group. However, the ABG closure in the two groups was not statistically different.

Conclusions and significance

Simultaneous ossiculoplasty using the posterior tympanum approach was practical, and the hearing outcomes were promising for the patients with traumatic facial nerve paralysis and ossicular disruption.

Chinese abstract

背景：由于采用经耳道入路的鼓室切开术是创伤性听骨损坏的常规手术法, 因此对后鼓室入路的疗效的探讨很少。

目的：本研究旨在探讨与使用经耳道入路相比, 使用后鼓室入路同时进行听骨成形术和面神经减压后的听力改善情况。

材料和方法：分析了11例使用后鼓室入路进行了听骨成形术和面部神经减压术的患者和21例经耳道入路进行听骨成形术的患者的数据。

结果：接受后鼓室切开术的患者的平均气骨间隙（ABG）显示出统计学上的显著改善。后鼓室组的患者中有81.8％的患者和经耳道组的患者中有76.2％的患者术后ABG在20dB以内。但是, 两组的ABG闭合在统计学上没有差异。

结论和意义：后鼓室入路同时进行听骨成形术是切实可行的, 对于创伤性面神经麻痹和听小骨受损的患者, 听力结果很有希望。

Keywords:

• Traumatic ossicular disruption
• posterior tympanotomy
• facial nerve injuries
• surgical timing

Disclosure statement

The authors declare no conflict of interest.