Faita Antonio, Montagner Giulia, Trojan Diletta, Di Pasquale Fiasca Valerio Maria
Section of Otorhinolaryngology, Cittadella Hospital, Cittadella, Italy.
Fondazione Banca dei Tessuti del Veneto, Treviso, Italy.
Case Rep Surg. 2024 Oct 30;2024:4874411. doi: 10.1155/2024/4874411. eCollection 2024.
Mastoid obliteration can be performed after canal wall down (CWD) mastoidectomy with various materials. Homologous bone tissue harvested from cadaver donor represents a feasible option with advantages. The purpose of the study is to describe the case of a patient diagnosed with middle ear cholesteatoma treated with mastoidectomy of the CWD and mastoid obliteration with homologous freeze-dried corticocancellous bone particulate in the Cittadella Hospital Ear, Nose, Throat (ENT) unit. The preoperative characteristics of the patients, the procurement and processing of bone allografts, the surgical technique, and postsurgical outcomes are described. No perioperative and postoperative complications were observed, and no rejection or foreign body reactions occurred. The patient then underwent a seriated follow-up. Audiometric tests showed an improvement in hearing levels. The volume of the neoexternal ear canal was 2.01 cm. The case demonstrated clinical stability, substantial hearing recovery, and no need for specialist cleaning of the reformed external ear canal (EEC). The freeze-dried bone tissue allograft, in the technical way we used, appears to be a viable option in mastoid obliteration because homologous bone is not affected by material shortage, has fast assimilation, and ensures a useful radiological examination scan, at a low cost.
乳突切除术后可使用多种材料进行乳突填塞。从尸体供体获取的同种异体骨组织是一种可行的选择，具有诸多优点。本研究旨在描述一名被诊断为中耳胆脂瘤的患者，在奇塔代拉医院耳鼻喉科接受完耳道壁下（CWD）乳突切除及使用同种异体冻干皮质松质骨颗粒进行乳突填塞的治疗情况。文中描述了患者的术前特征、骨移植材料的获取与处理、手术技术以及术后结果。未观察到围手术期及术后并发症，也未发生排斥反应或异物反应。随后对该患者进行了系列随访。听力测试显示听力水平有所改善。新外耳道体积为2.01立方厘米。该病例显示出临床稳定性、显著的听力恢复，且无需对重建的外耳道（EEC）进行专业清理。以我们所采用的技术方式，冻干骨组织同种异体移植在乳突填塞中似乎是一种可行的选择，因为同种异体骨不受材料短缺影响，吸收迅速，且能以低成本确保进行有效的放射学检查扫描。
