Schuknecht H F, Jones D D
Ann Otol Rhinol Laryngol Suppl. 1979 Jan-Feb;88(1 Pt 2 Suppl 55):1-43. doi: 10.1177/00034894790880s101.
Histological studies were made of 16 temporal bones of 13 subjects who had stapedectomy operations. Photographs of the prostheses in situ are a special feature of the studies. It was found that prostheses which overlap the margins of the oval window cause incomplete closure of the air-bone gaps. Fibrous adhesions were a common consequence of trauma to the mucous membrane of the middle ear. Gelfoam implantation promotes the formation of thin oval window membranes which tend to bulge out of the oval window. Most incudes show small areas of cortical bone resorption. In at least half the cases the surgical technique of stapedectomy, as judged from these studies, was less than ideal. Surgeons who perform stapedectomy should be cognizant of the relevant surgical pathology and adopt methods which will optimize functional results and minimize complications.
对13名接受镫骨切除术患者的16块颞骨进行了组织学研究。研究的一个特色是拍摄了原位假体的照片。发现覆盖卵圆窗边缘的假体会导致气骨间隙闭合不完全。中耳黏膜创伤的常见后果是纤维粘连。植入明胶海绵会促进薄卵圆窗膜的形成,这种膜往往会从卵圆窗中鼓出。大多数砧骨显示出皮质骨小面积吸收。从这些研究判断,至少在一半的病例中,镫骨切除术的手术技术并不理想。进行镫骨切除术的外科医生应了解相关的手术病理学,并采用能优化功能结果并将并发症降至最低的方法。