Sheehy J L, Perkins J H
Laryngoscope. 1976 Mar;86(3):436-44. doi: 10.1288/00005537-197603000-00013.
The commonest causes of failure with the prefabricated wire loop-gel foam pad technique are inferior displacement of the loop in the window, high membrane formation and window fibrosis. As a result of these problems some members of the Otologic Medical Group have abandoned the use of gelfoam in favor of tissue grafts. A comparison of the results with gelfoam, fat grafts, and fascia grafts in 573 primary cases is made. Tissue grafts yielded a lower incidence of postoperative vertigo, of temporary and permanent sensori-neural hearing impairment, of fistulas and of long-term hearing regression. The conclusion is that a tissue graft is preferable to gelfoam as an oval window covering in stapedectomy.
预制钢丝环-明胶海绵垫技术失败的最常见原因是环在窗口内移位、形成厚膜和窗口纤维化。由于这些问题，耳科医学小组的一些成员已不再使用明胶海绵，转而采用组织移植。本文对573例原发性病例中使用明胶海绵、脂肪移植和筋膜移植的结果进行了比较。组织移植术后眩晕、暂时性和永久性感音神经性听力损害、瘘管形成及长期听力减退的发生率较低。结论是，在镫骨切除术中，作为卵圆窗覆盖物，组织移植优于明胶海绵。
