Mastoid and Epitympanic Obliteration in Canal Wall Up Mastoidectomy for Prevention of Retraction Pocket

Objective: To evaluate the surgical outcome in patients who have undergone mastoid and epitympanic obliteration technique. Study Design: Retrospective review. Setting: Tertiary care referral center. Patients: The study group included 151 patients with cholesteatoma who underwent mastoid and epitympanic obliteration technique. This technique was applied to cases who had a strong chance of recurrent retraction pocket and cholesteatoma formation, including those patients with an adhesive drum indicating poor eustachian tube function (n = 52) and patients with a destructive scutum (n = 68). Thirty-one patients had both an adhesive drum and a destructive scutum. Intervention: The connection between the mastoid cavity and the middle ear was blocked by obliterating the epitympanu