Mahesh Babu Myle, Ramabhadraiah Anil Kumar, Srivastava Trisha, Thirugnanmani Revathy
Bangalore Medical College and Research Institute, Fort, K R Road, Bengaluru, 560002 India.
Indian J Otolaryngol Head Neck Surg. 2019 Nov;71(Suppl 2):1227-1231. doi: 10.1007/s12070-018-1283-x. Epub 2018 Feb 20.
To analyse the postoperative hearing results of patients undergoing type III tympanoplasty using sculptured homologous spur cartilage. This prospective study included 156 patients of chronic otitis media (COM), between the ages 10-60 years. All cases underwent type III tympanoplasty with ossiculoplasty using homologous spur cartilage. The study sample of 156 patients contained 107 cases of mucosal type and 49 cases of squamosal type COM. Type III A tympanoplasty was done for 71 cases and type III B tympanoplasty was done for 85. Pure tone audiometry (PTA) was done pre and postoperatively, in all the cases. The patients were followed up for 6 months postoperatively. The average preoperative mean air-bone-gap (ABG) was 43.64 dB, whereas in type III A cases it was 39.7 dB and in type III B it was 46.9 dB. The mean ABG at 6th month follow up was 18.9 dB in the study group. In type III A cases, mean ABG was 15.2 dB and in type III B cases it was 22.11 dB. Homogenous spur cartilage graft can be used for ossicular chain reconstruction with the advantage of very low extrusion rate, technically easy to perform with less risk of residual disease.
分析采用雕刻的同种异体锤骨柄软骨进行Ⅲ型鼓室成形术患者的术后听力结果。这项前瞻性研究纳入了156例年龄在10至60岁之间的慢性中耳炎（COM）患者。所有病例均采用同种异体锤骨柄软骨进行Ⅲ型鼓室成形术并重建听骨链。156例患者的研究样本中，包含107例黏膜型和49例鳞状上皮型COM。71例行ⅢA型鼓室成形术，85例行ⅢB型鼓室成形术。所有病例均在术前和术后进行纯音听力测试（PTA）。术后对患者进行6个月的随访。术前平均气骨导间距（ABG）为43.64dB，ⅢA型病例为39.7dB，ⅢB型病例为46.9dB。研究组在术后6个月随访时的平均ABG为18.9dB。ⅢA型病例的平均ABG为15.2dB，ⅢB型病例为22.11dB。同种异体锤骨柄软骨移植物可用于听骨链重建，具有极低的排斥率，技术操作简便，残留疾病风险较小。
