Stapedectomy (otosclerosis-calcification surgery)

Stapedectomy is a surgical procedure in which the stapes bone in the middle ear is removed and replaced with a prosthesis. The stapes is part of the ossicular chain that transmits sound vibrations from the eardrum to the inner ear. This operation is primarily indicated when the movement of the stapes is restricted, leading to conductive hearing loss.

The most common cause is otosclerosis, a progressive bone disease in which the stapes becomes fixed at the oval window, preventing proper transmission of sound. Stapedectomy restores the mobility of the ossicular chain, improving hearing and, in some cases, reducing associated tinnitus (ear ringing).

When Is Stapedectomy Performed?

Stapedectomy is typically recommended for patients with:

• Conductive hearing loss due to otosclerosis
  
  
• Progressive or significant hearing impairment affecting daily activities
  
  
• Persistent tinnitus associated with stapes fixation
  
  

Contraindications include:

• Sensorineural hearing loss (inner ear origin)
  
  
• Active middle ear infection
  
  
• Certain congenital or structural inner ear anomalies
  
  

For suitable patients, stapedectomy offers a high success rate and is considered an effective alternative to hearing aids.

Preoperative Evaluation

A thorough ENT assessment and audiological evaluation are essential before surgery:

1. Patient History:
   
   
   • Duration and progression of hearing loss
     
     
   • Presence of tinnitus or other symptoms
     
     
   • Previous ear surgeries or infections
     
     
2. Physical Examination:
   
   
   • Otoscopy to assess the eardrum and external ear canal
     
     
3. Audiological Tests:
   
   
   • Pure-tone audiometry to determine hearing loss type and degree
     
     
   • Air-bone gap analysis to confirm conductive hearing loss
     
     
   • Tympanometry to evaluate middle ear pressure and eardrum mobility
     
     
4. Imaging Studies (if indicated):
   
   
   • High-resolution temporal bone CT to assess stapes and middle ear anatomy
     
     
   • Ensures surgical planning is safe and effective
     
     
5. General Health Assessment:
   
   
   • Evaluation for anesthesia suitability
     
     
   • Discussion of surgical risks (vertigo, taste disturbances, permanent hearing loss)
     
     
   • Detailed explanation of expected outcomes and success rates
     
     

Proper patient selection and preoperative planning are critical for optimal surgical results.

Benefits and Outcomes

When performed by an experienced surgical team, stapedectomy can:

• Significantly improve hearing
  
  
• Reduce or eliminate conductive hearing loss
  
  
• Alleviate tinnitus in some patients
  
  
• Enhance overall quality of life
  
  

Long-term follow-up is recommended to monitor hearing stability and prosthesis function.

Conclusion

Stapedectomy is a reliable and effective surgical procedure for restoring hearing in patients with otosclerosis-related conductive hearing loss. Careful preoperative evaluation, patient selection, and surgical expertise are essential for achieving optimal hearing outcomes. Patients experiencing hearing difficulties should consult an ENT specialist to determine if stapedectomy is appropriate for their condition.