Mastoidectomy: retrospective analysis of 137 cases in a tertiary care hospital


  • Jaya Chrisanthus Department of ENT, Government Medical College, Trivandrum, Kerala, India
  • Shibu George Department of ENT, Government Medical College, Trivandrum, Kerala, India



Chronic otitis media, Mastoidectomy, Anatomical abnormalities, Tympanoplasty


Background: Mastoidectomy is a common otologic surgery and at times can be a lifesaving procedure. The aim of the study is to analyze surgical indications, operative parameters and per-operative findings encountered.

Methods: This is a retrospective study done in patients who had undergone mastoid surgeries between 1st Jan 2016 to 31st Dec 2016 in the Department of Otorhinolaryngology, Govt. Medical College hospital, Trivandrum.  

Results: Of the 137 patients the peak age incidence was 16 – 30 years. Cholesteatoma was present in 32% of which 91% had canal wall down mastoidectomy. 64% patients, mostly chronic otitis media- mucosal and inactive squamosal, underwent canal wall up procedure. In 62% cases the ossicular chain was eroded, which was mainly incus (87%). Abnormalities encountered within the mastoid during surgery were mainly dehiscent facial canal (17.5%), low lying dura (16.8%) and contracted antrum (15.3%). A positive association could be noted between contracted antrum and the position of sinus and dural plates, and was statistically significant. Co-existence of facial canal dehiscence with lateral canal fistula and dural plate dehiscence were also noted. The tympanoplasty procedures commonly employed in canal wall up procedures was Type I and 2, and in canal wall down procedure was Type 3.

Conclusions: Adequate skill development of the ear surgeons in the tertiary centre should be ensured, to individualize the procedure appropriate for each patient and optimize the outcome of surgery. Early referral to the nearby otological centre should be promoted not only to prevent complications but also for better post-surgical functional outcome.

Author Biographies

Jaya Chrisanthus, Department of ENT, Government Medical College, Trivandrum, Kerala, India

Assistant Professor 

Department of ENT

Govt Medical College, Trivandrum 

Kerala, India

Shibu George, Department of ENT, Government Medical College, Trivandrum, Kerala, India

Additional Professor 

Department of ENT

Govt Medical College, Trivandrum 

Kerala, India


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Original Research Articles