ABSTRACT
Background: To study ossicular defects in cases of Chronic Suppurative Otitis Media. Study design: Retrospective. Methods: The study included 90 patients of Chronic Suppurative Otitis Media who underwent surgery in the Department of Otorhinolaryngology, Muzaffarnagar Medical College, a tertiary care centre in the state of Uttar Pradesh. The period of study was from September 2014 to August 2017. Results: The overall male: female ratio was 1:1.14. Most of the patients had bilateral disease (38.89%), followed by left ear as the only diseased ear. Malleus was involved in 11 patients, all with active squamousal disease. Incus was involved in total 21 patients (3- mucosal category, 19 – squamousal). Stapes involvement was seen in 15 patients (2-mucosal and 13-squamousal disease). Incus was involved most frequently in 21.11%; followed by stapes; involved in total 16.66% patients. Malleus was most resistant ossicle, involved in 12.22% patients. Conclusion: Malleus was the most resistant ossicle to erosion in chronic suppurative otitis media whereas incus was found to be the most susceptible. Overall, the order of ossicular involvement was incus>stapes>malleus. In active squamousal disease, stapes and malleus were equally involved.