Department of Otolaryngology-Head and Neck Surgery, Tufts Medical Center, 800 Washington Street, Boston MA 02111, USA.
Department of Otolaryngology-Head and Neck Surgery, University of Colorado Anschutz School of Medicine, 12631 E 17th Avenue, Aurora, CO 80045, USA.
Otolaryngol Clin North Am. 2025 Feb;58(1):123-132. doi: 10.1016/j.otc.2024.08.003. Epub 2024 Sep 10.
Canal wall down mastoidectomy is performed when demanded by the extent of disease: presence of a large labyrinthine fistula, extensive erosion of posterior auditory canal wall, prior failed intact canal wall surgery, a contracted, sclerotic mastoid with extensive disease, or need for exteriorization due to inadequate exposure or inability to remove disease safely with a canal wall up approach.
当疾病的范围需要时，会进行经鼓室底的乳突切除术：存在大的迷路瘘管、后鼓室壁广泛侵蚀、先前完整的鼓室壁手术失败、乳突缩窄硬化伴广泛病变、或由于暴露不足或无法通过鼓室上入路安全清除病变而需要外置。
