耳内镜下岛状耳屏软骨-软骨膜在Ⅱ型鼓室成形术中的应用及疗效分析OA

OBJECTIVE To explore the application and clinical efficacy of island tragus cartilage-perichondrium under otoscope in type Ⅱ tympanoplasty.METHODS A retrospective analysis was performed on 93 patients(95 ears)with chronic suppurative otitis media treated at Ningbo Medical Center Lihuili Hospital.All patients underwent type Ⅱtympanoplasty using the island tragus cartilage-perichondrium complex interlay method under endoscopy.Postoperative complications,tympanic membrane healing rate,and hearing status at 3 months after surgery were observed.RESULTS Of the 95 ears,92 cases(96.8%)achieved postoperative healing.Air conduction hearing was significantly improved in 90 cases(94.7%)compared with preoperative levels.There were no statistically significant differences in bone conduction between pre and post operation,nor in postoperative air bone gap among patients with different ossicle lengths(P>0.05).Postoperative air conduction hearing and air bone gap were significantly improved compared with preoperative values,with statistically significant differences(P<0.01).No postoperative complications occurred.CONCLUSION Type Ⅱ tympanoplasty using the island tragus cartilage-perichondrium complex interlay method under otologic endoscopy can achieve a high tympanic membrane healing rate and significantly improve hearing in patients.