Far-advanced otosclerosis, as defined by Sheehy, is suitable for surgical procedures provided certain criteria are met. These are: a history commensurate with otosclerosis, tuning fork tests indicative of some bone-conduction hearing, and good voice quality and articulation. It is not necessary to obtain any audiometric responses by air or bone conduction.
Forty-one patients (59 ears) with far-advanced otosclerosis were designated as appropriate for stapes surgery on the basis of this specific diagnostic protocol. The diagnoses were confirmed at the time of surgery and 92% obtained some degree of postoperative improvement in hearing levels. It is evident that if the proper diagnostic criteria are used, the choice of stapes surgery for far-advanced otosclerosis is productive of satisfactory results.
Hildyard VH, Sando I, Davison SL. Diagnosis and Management of Far-Advanced Otosclerosis. Arch Otolaryngol. 1972;96(6):530–534. doi:10.1001/archotol.1972.00770090808006