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Comparative study of hearing improvement in type 1 tympanoplasty with and without canalplasty
H Vijayendra1, C J Ittop, R Sangeetha
1No. 1, 9th cross, Margosa Road, Malleswaram, Bangalore, 560 003 India.
Introduction:
Widening of the external auditory canal is canalplasty. It is an intergral part of tympanoplasty, especially in anterior perforations and gives wide surgical access for proper repair.
Materials And Methods:
After elevating tympanomeatal flaps the canal is widened using conical cutting and diamond burrs following which entire tympanic annulus is visible and corresponds to an inverted truncated cone.
Results:
Canalplasty gives 9 db gain in hearing compared to without canalplasty.
Conclusion:
Canalplasty gives better visualization, better graft placement and better post-operative care.
