AIM: To describe our surgical technique and compare the results of obliteration materials. @entity1 AND METHODS: Fifty @entity1 over a 7-year period were evaluated retrospectively. Out of these 50 consecutive @entity1 , 29 had recurrent @entity102 media (COM) with or without @entity3540 and 21 @entity1 had old open cavities. Efficacy of @entity2267 was assessed by an electronic chart review, otoendoscopic findings, temporal bone computerized tomography (CT) images, and postoperative caloric test. RESULTS: Among 50 @entity1 , inferiorly-based periosteal flap was used in 25 @entity1 (50%) and anteriorly-based periosteal flap was used in the other 25 @entity1 . Tympanic membrane and newly-formed external auditory canal wall was intact in 48 @entity1 (96%). The newly-formed EAC provided sufficient aeration, and satisfactory aesthetic appearance. None of our @entity1 complained of vertigo triggered by cold air or water. There was no significant difference in the caloric test results between the operated ear and the normal ear. No difference was observed in the caloric test between the bone pate and costal cartilage groups. CONCLUSION: Our results indicate that @entity2267 using autogenous bone pate or costal cartilage is helpful in improving the outcomes of revision canal wall-down mastoidectomy in @entity1 with an old radical cavity and recurrent COM or @entity3540 .

Comparison of obliteration materials used for revision canal wall-down mastoidectomy with XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'PATIENTS'] @entity2267 :: ('MESH:D008417', 'Disease') :: ['mastoid obliteration'] @entity3540 :: ('MESH:D002781', 'Disease') :: ['cholesteatoma'] @entity102 :: ('MESH:D002908', 'Disease') :: ['chronic otitis']
@entity2267 :: (MESH:D008417,Disease) :: ['mastoid obliteration']
