Abstract
Twenty patients with labyrinthine fistulae occurring as late complications of radical or conservative radical mastoidectomy had had a long history of postoperative aural discharge and dizziness or vertigo 4 to 64 years following the surgery. Fistula tests were positive in 16 patients. Closure of the fistulae was performed with temporalis fascia alone in 5 and auricular cartilage in 6. Mastoid obliteration by pedicled temporalis muscle with or without hydroxyapatite granules was performed in 6, labyrinthectomy plus mastoid obliteration in 2, and ear canal obstruction in one. In 4 patients, a concomitant postauricular skin fistula was closed. The postoperative course in all 20 patients was uneventful and good.
