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目的 探讨听骨链中断的诊断及治疗。方法 对 10例听骨链中断患者的临床表现、纯音测听、声导抗检查以及耳显微手术探查结果作了临床分析。结果 10耳中 ,8耳传导性听力减退 ,2耳混合性听力减退。术中见 5耳为听小骨病变 ,3耳为砧镫关节纤维组织软连接 ,2耳为砧镫关节脱位。均行听骨链重建术 ,术后随访半年至三年 ,语频区平均听力提高 2 0dB。结论 听骨链中断应作手术探查 ,进行传音结构的重建术 ,以改善听力
Objective To investigate the diagnosis and treatment of ossicular chain disruption. Methods The clinical manifestations, pure tone audiometry, acoustic impedance test and otoscopic microsurgery in 10 patients with ossicular chain disruption were analyzed. Results 10 ears, 8 ears conductive hearing loss, 2 ears mixed hearing loss. Surgery, see 5 ears for the auditory ossification, 3 ears were anvil 镫 joint soft tissue fibers, 2 ears for anvil 镫 joint dislocation. Accompanied by ossicular chain reconstruction, follow-up for six months to three years, the average hearing in the speech frequency area increased 20dB. Conclusion ossicular chain should be interrupted for surgical exploration, the structure of the sound transfer reconstruction to improve hearing