The short version
A hearing aid treats the symptom with no risk to the inner ear, at the cost of wearing a device every day. Stapedotomy treats the mechanism with a high chance of lasting, device-free hearing, at the cost of a small irreversible risk. Most people with otosclerosis are candidates for both, and either choice is defensible.
Side by side
Hearing in quiet. Both give good results. Surgery, when successful, returns thresholds to the bone-conduction line; a well-fitted aid brings speech into the audible range. In a pure conductive loss, the outcomes in quiet are broadly similar.
Hearing in noise and locating sound. Here surgery has an advantage when it succeeds: the ear delivers natural timing and level cues to the brain, and binaural hearing is restored more completely. Aids with directional microphones help but introduce processing delays and do not fully restore localisation.
Sound quality. Natural transmission versus amplification. Many people who have had successful surgery describe the difference as the return of “their own” hearing; many aid users are entirely satisfied. This is a personal weighting.
Risk to the inner ear. A hearing aid: none. Surgery: profound loss in about 0.5–1% of primary operations; smaller high-frequency shifts more often. Revision surgery carries a higher risk.
Other risks. Aids: none of medical importance. Surgery: temporary dizziness and taste change, rarely persistent; tinnitus usually improves but occasionally worsens.
Durability. Aids need replacing every five to seven years and daily maintenance. Surgical results are stable for most people over decades, with a minority needing revision.
Reversibility. An aid can be removed. Surgery cannot be undone, though most complications can be treated.
Progression. Otosclerosis may progress in the inner ear regardless of treatment; a hearing aid may still be needed years after successful surgery if bone conduction deteriorates.
Practicalities and cost. Aids: purchase and replacement costs, batteries, cosmetics, wet environments. Surgery: an operation, recovery time, a few weeks off strenuous activity and flying, and the cost of the procedure — which varies greatly between systems and countries.
What tips the balance towards surgery
A large air-bone gap with good bone conduction; excellent word recognition; a normal or already-treated other ear; a strong preference for device-free hearing; a working life in which an aid is impractical; willingness to accept a small irreversible risk.
What tips the balance towards a hearing aid
A mild loss; a mixed loss where an aid will be needed anyway; an only-hearing ear; poor bone conduction; medical reasons to avoid surgery; a low tolerance for any risk to the inner ear; satisfaction with a trial of amplification.
A reasonable sequence
Try a hearing aid first. It informs the decision and loses nothing. If it serves well, keep it. If it does not — or if the preference for device-free hearing is strong — surgery remains available, and its results do not depend on being done early.
Counselling notes
Quality-of-life comparisons (e.g. Glasgow Benefit Inventory) favour successful surgery in several series, but selection bias is inherent. Present the surgeon's own ABG closure and BC change figures rather than literature averages. Discuss the second ear explicitly: binaural benefit from operating the second ear after a good first result is well documented, but the cumulative risk of two operations should be stated. A hearing aid trial is not merely a formality; it establishes aided performance as the comparator for surgery and identifies people for whom amplification is unsatisfactory for reasons (occlusion, own-voice, cosmetics) that surgery would address.
This page provides general educational information. It cannot replace an individual assessment, which depends on a full history, examination, audiometry and, where relevant, imaging. If you have sudden hearing loss, severe pain, facial weakness, severe dizziness or discharge with fever, seek medical care promptly.