Yetişer S, Tosun F, Satar B
Department of Otolaryngology-Head and Neck Surgery, Gulhane Medical School, Ankara, Turkey.
Otolaryngol Head Neck Surg. 2001 May;124(5):518-21. doi: 10.1067/mhn.2001.115058.
Several grafting materials have been used in the reconstruction of the perforations of the tympanic membrane. The use of dehydrated dura homografts as a substitute for the tympanic membrane has not been fully documented. On the other hand, revision surgery is more critical in terms of patients' expectations. The aim of this study is to determine the tissue stiffness, the compliance, and the wound healing rate of dura homografts in revision surgery of perforations of the tympanic membrane.
The charts of 45 patients who have received dura grafts because of re-perforation or failure of the myringoplasty have been reviewed retrospectively. The healing process of the myringoplasty, graft take rate, pure-tone hearing level, and tympanogram were reviewed.
It has been concluded that dura homografts, which have excellent tissue-compatibility, stability, and an 86.7% graft success rate, are preferred in patients in whom their own temporalis fascia cannot be used because of previous operations. It has been demonstrated by tympanometric analysis that the compliance of the graft during various pressure applications is as good as the normal eardrum.
几种移植材料已被用于鼓膜穿孔的重建。脱水同种硬脑膜作为鼓膜替代物的应用尚未得到充分记录。另一方面,翻修手术在患者期望方面更为关键。本研究的目的是确定在鼓膜穿孔翻修手术中同种硬脑膜的组织硬度、顺应性和伤口愈合率。
回顾性分析了45例因鼓膜再次穿孔或鼓膜成形术失败而接受硬脑膜移植的患者的病历。回顾了鼓膜成形术的愈合过程、移植成功率、纯音听力水平和鼓室图。
得出结论,同种硬脑膜具有优异的组织相容性、稳定性,移植成功率为86.7%,对于因既往手术无法使用自身颞肌筋膜的患者是首选。鼓室图分析表明,在各种压力应用下,移植材料的顺应性与正常鼓膜一样好。