Epitympanoplasty with autologous cortical bone in intact-bridge tympanomastoidectomy
YANG Mingbao
ZHAO Hailiang
CHAI Fu
QIU Shuqi
Abstract：Objective To report outcomes of epitympanoplasty with autologous cortical bone in intact-bridge tympa-nomastoidectomy (IBM) for the treatment of chronic suppurative otitis media or middle ear cholesteatoma. Methods In 48 patients (50 ears) who underwent IBM, the lateral wall of the attic was reconstructed with autologous cortical bone. The technique and outcomes were reported. Results Cases were followed up 3-21 months. The ears became dry between 3 to 14 weeks (average 6.7 weeks). Tympanic membrane healing rate was 92%(46/50 ears). In 4 cases, revision operation was need-ed because of postoperative infection (n=3) and tympanic membrane perforation related to residual cholesteatoma epitheli-um (n=1). The average air conduction threshold over 0.5, 1 and 2 kHz improved from 53.7 ± 6.9 dBHL to 36.3 ± 9.1 dBHL, while average air-bone gap decreased from 26.4±7.3 dB to 15.0±4.2 dB. The success rate (postoperative PTA-ABG≤20 dB HL) was 72%(36/50). Conclusion The preserved"bone bridge"in IBM plays a supporting role to cortical bone and tym-panic membrane grafts. IBM combined with epitympanoplasty with autologous cortical bone preserves the air space in the attic or mesotympanum, as well as the morphology of the external auditory canal wall, and helps prevent retraction pocket formation. This technique provides an ideal solution of treating otitis media for otologists.
Keywords：Chronic suppurative otitis mediaMiddle ear cholesteatomaepitympanoplastyIntact-bridge tympano-mastoidectomy
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 625-628 )