Effect of mastoid pneumatization on myringoplasty success: A radiological study

Hazem Saeed Amer, Mohammad Waheed El-Anwar, Mohammad Abdelhady, Ghada Abdulmonaem, Khaled Mohammad Elgerby

Indian Journal of Otology 2017 23(2):104-107

Objectives: The objective of the study was to evaluate the effect of mastoid pneumatization on myringoplasty success. Patients and Methods: Forty-two adult patients with dry central tympanic membrane perforation scheduled for myringoplasty were included in the study. Computed tomography (CT) scans of the temporal bone coronal and axial cuts were done 1–2 days before surgery. The patients were evaluated on the basis of postoperative graft taking. Results: Success rate was 85.7% while failure rate was 14.3%. The mean longitudinal diameter of the mastoid was found to be 2.35 cm in succeeded cases and 1.43 cm in failed cases with near significant difference (P = 0.0636). The mean transverse diameter was 1.44 cm in succeeded cases and 0.83 cm in failed cases with a significant difference (P = 0.0476). The mean depth of the mastoid was 0.4 in both succeeded and failed cases. The mean total mastoid volume was 2.832 ml in succeeded cases and 1.13 ml in failed cases with nonsignificant difference (P = 0.1218). The mean mastoid surface area was 516.9 cm2 in succeeded cases and 448.5 cm2 in failed cases with a significant difference (P = 0.0087). Conclusions: Success rate of myringoplasty is higher in patients with chronic suppurative otitis media (CSOM) having large mastoid system than those having small one. Preoperative CT scans in patients with CSOM undergoing myringoplasty are advisable.

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