Zhang Jiapeng, Wen Zhong, Sun Yifan, Zhang Zhigang, Zheng Yiqing
Department of Otorhinolaryngology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China.
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2012 Apr;26(7):300-1, 305.
To investigate the diagnose therapy and the postoperative curative effect of traumatic ossicular chain disruption and dislocation.
Eight cases (8 ears) with traumatic ossicular chain disruption. Six cases of unilateral conductivity deafness, 2 of mixed deafness still with conductive primarily. Eight ears all were performed tympanic exploration and ossicular replacement prosthesis, 1 ear with TORP (total ossicular replacement prosthesis). 4 ears with PORP (partial ossicular replacement prosthesis), 2 with ossicular chain reset, 1 with artificial incus reconstruction. The treatment effect was compared by the preoperative and postoperative ABG (air bone gap).
Preoperative average ABG was 42. 9 dB, the average ABG 3 weeks after operation was 22.3 dB, which reduced 20.6 dB compared to the preoperative, having a statistically significant difference (t = 22.10, P < 0.01). The average ABG was 18.6 dB 6-8 months after operation, which reduced 24.3 dB compared to the preoperative, having a statistically significant difference (t = 12.813, P < 0.01).
The conductivity hearing loss after traumatic ossicular chain disruption or dislocation is preferred operation treatment, and replacement should use different ways according to the operation in case, and the hearing improvement was obvious.
探讨外伤性听骨链中断及脱位的诊断、治疗方法及术后疗效。
外伤性听骨链中断患者8例（8耳）。其中单侧传导性聋6例，混合性聋2例，仍以传导性聋为主。8耳均行鼓室探查及听骨赝复物植入术，1耳植入全听骨赝复物（TORP），4耳植入部分听骨赝复物（PORP），2耳行听骨链复位，1耳行人工砧骨重建。通过术前及术后气骨导差（ABG）比较治疗效果。
术前平均ABG为42.9dB，术后3周平均ABG为22.3dB，较术前降低20.6dB，差异有统计学意义（t = 22.10，P < 0.01）。术后6～8个月平均ABG为18.6dB，较术前降低24.3dB，差异有统计学意义（t = 12.813，P < 0.01）。
外伤性听骨链中断或脱位后的传导性听力损失首选手术治疗，应根据术中情况采用不同的赝复方式，听力改善明显。
