Comparison of Structural Alterations of Incus Bone Between Middle Ear Cholesteatoma and Temporal Bone Osteitis Among Patients Who Underwent Mastoid Exploration in Services Hospital, Lahore

Abstract

Objective: To compare the structural changes of incus bone between middle ear cholesteatoma and temporal bone osteitis among patients who underwent mastoid exploration in Services hospital, Lahore.
Material and Methods: An analytical and hospital based comparative study carried out at ENT- II Services Hospital Lahore during July 2023 to December 2023 for 6 months. Total 60 patients were selected. Random allocation of study participants were done in two groups, Group A and Group B. Each group had 30 patients. Patients with middle ear cholesteatoma were in group A, while all patients in group B had middle ear temporal bone osteitis. A mastoid X-ray displaying haziness of mastoid air cells and CT scan demonstrating the intracranial and extracrainal extrusion were carried out. SPSS 20 was used to analyze all data.
Results: The study's cases had an average age of 31.00±11.07 years. With a p-value of 0.322 (> 0.05), the mean age of two groups was statistically equal. In this study, there were 26 (43.3%) male cases and 34 (56.7%) female cases, with female to male ratio of 1.31 and 1. All groups had structural alterations in Incus bone. Long process was seen in 16(26.7%) cases, Lenticular process was seen in 25(41.7%) of the cases, there were 14(23.3%) cases who had short process and in 5(8.3%) cases all were eroded.
Conclusion: The results of this study demonstrated strong correlation between localized middle ear cholesteatoma and temporal bone osteitis and alterations in incus bone.