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目的评价圆锥形钛质听骨在鼓室成形手术中的应用效果。方法对我院32例慢性化脓性中耳炎患者,在接受人工听骨部分赝复物——圆锥形钛质听骨植入及听骨链重建术后进行随访。结果30耳鼓膜修补后1个月复查均愈合良好,但术后4个月时发现2例听骨脱出。30耳术前气导听力(58.02±12.79)dB,术后气导听力平均为(35.03±14.23)dB,术后听力较术前明显提高(P<0.01)。术前骨导听力(19.22±11.33)dB,术后骨导听力(22.28±11.11)dB,术前、术后听力无明显变化(P>0.05)。术前气骨导差(ABG)(38.71±11.19)dB;术后气骨导差(ABG)(20.92±12.03)dB,与术前相比气骨导差下降明显(P<0.01)。术后听力提高总有效率为76.7%。结论锥形钛质听骨应用于中耳乳突手术中可以获得良好的听力效果,它是一种并发症少,值得推广应用的人工听骨材料。
Objective To evaluate the application of conical titanium ossicles in tympanoplasty. Methods Thirty-two patients with chronic suppurative otitis media in our hospital were followed up after accepting the artificial ossicular prosthesis - conical titanium implant and reconstruction of ossicular chain. Results All the eardrums were healed well 1 month after repair, but 2 cases of eardrums were found 4 months after the operation. 30 (58.02 ± 12.79) dB before the operation, and average postoperative air conduction hearing was (35.03 ± 14.23) dB. The hearing after operation was significantly higher than that before operation (P <0.01). Preoperative bone conduction hearing (19.22 ± 11.33) dB, postoperative bone conduction hearing (22.28 ± 11.11) dB, no significant change in preoperative and postoperative hearing (P> 0.05). The preoperative airway deformability (ABG) was (38.71 ± 11.19) dB and the postoperative airway derangement (ABG) was (20.92 ± 12.03) dB, which was significantly lower than that before operation (P <0.01). The total effective rate of postoperative hearing was 76.7%. Conclusion The application of tapered titanium to the middle ear mastoidectomy can obtain a good hearing effect. It is a kind of artificial ossicular material with few complications and worth popularizing and applying.