Abstract
A review of 79 patients undergoing revision stapedectomy by Dr M. E. Glasscock revealed the mean time from primary to revision surgery to be approximately seven years, with hearing loss being the most common symptom. The hearing loss was secondary to inferior displacement of the prosthesis in 30% of cases, and much less commonly was due to incus necrosis, perilymph fistula, residual footplate, oval window reclosure, or improper length of prosthesis. Problems with displacement or improper length of prosthesis caused earlier patient symptomatology and, therefore, earlier revision surgery, all patients having a good prognosis for postoperative hearing except those whose prosthesis was too long. Hearing loss secondary to incus necrosis occurred later, and hearing loss associated with fistula occurred in equal proportions, early as well as late. Vertigo or dysequilibrium was the major complaint with perilymph fistula or an excessively long prosthesis. Patients with either problem predictably had a worse
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