The Zone-Based Approach for Selection of Tympanoplasty Technique
Journal Title: Otolaryngologia Polska - Year 2012, Vol 66, Issue 1
Abstract
SUMMARY At the outset of surgery, the extent of a tympanic membrane defect is judged including any additional loss of area that may result from disease extirpation or removal of the mucocutaneous junction. There are, three tiers of complexity when deciding upon which technique should be used for repair. Limited central perforations are defects amenable to a standard underlay technique. The Zone Based Approach is applied for marginal perforations whereby the specific technique is selected based on the zone of the defect. The zones and specific techniques are detailed. There are however, still a significant number of patients who have scarce residual tympanic membrane, or keratin matrix adherently involving the undersurface requiring sacrifice. These situations prove poor for either standard underlay or the zone based techniques. The total tympanic membrane reconstruction (TTMR) technique was developed specifically to avoid these complications as well as facilitate extirpation of the more extensive inflammatory and neoplastic pathologies commonly encountered, yet still amenable to intact canal wall mastoidectomy approaches.
Authors and Affiliations
Andrew Fishman, Jozef Mierzwinski
Keywords
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