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  • Title: Tympanoplasty for pars flaccida.
    Author: Yu LH, Lien CF.
    Journal: Zhonghua Yi Xue Za Zhi (Taipei); 1998 Aug; 61(8):479-83. PubMed ID: 9745164.
    Abstract:
    BACKGROUND: The formation of a retraction pocket of the pars flaccida remains a difficult problem for otologists to treat. It may lead to ossicular erosion and the development of a cholesteatoma, especially when the pocket is adherent to the malleus neck. We designed a new method of surgery for the treatment of small attic cholesteatomas. METHODS: From 1986 to 1996, 20 patients with a retraction pocket of the pars flaccida or a small attic cholesteatoma underwent surgery as described below. The complete lesion was removed after widening the posterior-superior bony external ear canal wall and placing pieces of conchal cartilage (usually less than 10 pieces, according to their scutum defect) lateral to the malleus neck or incus. The temporalis fascia was then laid. RESULTS: The average follow-up period was 32 months. The paired t-test was used to compare the results of preoperative and postoperative air conduction and air-bone gap. The preoperative average air conduction was 31.17 dB and the air-bone gap was 15.09 dB. The postoperative average air conduction was 20.66 dB and the air-bone gap was 3.09 dB. The difference between preoperative and postoperative measurements was considered significant (p < 0.05). No recurrent retraction pockets or cholesteatomas were noted during follow-up. CONCLUSIONS: Tympanoplasty for correction of a retraction pocket of the pars flaccida can prevent further attic retraction and the development of cholesteatomas. Postoperative hearing results were also encouraging.
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