The stapedoplasty is a surgery of the middle ear in order to improve hearing.
It consists of removing the stirrup, which is static and unable to transmit sonic vibrations, replacing it with a microscopic metallic prosthesis.
Stapedoplasty is effective in the event that there are signs of otosclerosis. In this disease, the bone tissue is greatly expanded as a result of the mobility of the element responsible for the transmission of sound, significantly reduced. A second reason may be a congenital malformation of the stapes. It is suggested when the transmissive component is equal or superior to 30 dB with vocal impairment superior to 30%.
The results of this surgery are generally most reliable after otosclerosis. Nine out of ten patients who undergo the procedure will come out with significantly improved hearing while less than 1% will experience worsened hearing acuity or deafness. Successful surgery usually provides an increase in hearing acuity of about 20 dB.