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Abstract

A mastoid cavity resulting from a canal wall down mastoidectomy can result in major morbidity for patients due to chronic otorrhea and infection, difficulty with hearing aids and vertigo with temperature changes. Mastoid obliteration with reconstruction of the bony external ear canal recreates the normal anatomy to avoid such morbidity. This retrospective observational study was conducted to determine if mastoid obliteration with autologous cranial bone graft following mastoidectomy improves quality of life (QOL). Patients with cholesteatoma who hadastoidectomy with primary or secondary mastoid obliteration by a tertiary otologist were surveyed using Glasgow Benefit Inventory (GBI), and primary outcome measure. Fifty eight patients were interviewed; forty-six were primary obliteration after canal wall down after a primary cholesteatoma. Twelve were secondary obliteration of an existing canal wall down mastoidectomy cavity. The study shows that mastoidectomy with obliteration using autologous bone graft offers a significant QOL benefit. Secondary obliterations after revision mastoidectomy scored much higher than primary obliterations.

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