Stapedectomy is a microsurgical procedure that treats hearing loss caused by otosclerosis. This condition involves abnormal bone growth that fixes the stapes bone (the smallest bone in your body) in place. The stapes bone normally vibrates to transmit sound waves from your eardrum to your inner ear. When otosclerosis prevents this movement, sounds cannot reach your inner ear properly, causing conductive hearing loss.
During stapedectomy surgery, the ENT specialist removes part or all of the immobilised stapes bone and replaces it with a prosthetic device. This tiny prosthesis, typically made of titanium or fluoroplastic, recreates the sound transmission pathway by connecting your incus bone to your inner ear fluid. The procedure aims to restore the mechanical chain of hearing, allowing sound vibrations to travel normally through your middle ear.
The surgery addresses conductive hearing loss, which occurs when sound cannot efficiently travel through the outer or middle ear. Patients with otosclerosis often experience a gradual hearing decline, particularly difficulty hearing low-pitched sounds or whispers. Many also report tinnitus (ringing in the ears) that may improve after stapedectomy. The procedure may help improve hearing, though individual results vary based on factors including disease severity and surgical technique.