Abstract
In middle ear surgeries, addressing the pathologies (cholesteatoma, retractions or tympanosclerosis) in attic or postero-superior area, are associated with difficulties like reconstruction of attic and postero-superior canal wall after clearing the disease. There are various graft materials available for such attic reconstruction in intact canal -wall surgeries. We describe our experience of attic and postero-superior canal wall reconstruction in combined approach tympanoplasty (CAT) using free auricular cartilage and free fibro-periosteal tissue and to present our results in anatomical and functional perspectives. This retrospective observational study was conducted in a tertiary care center which comprised 25 cases of combined approach tympanoplasty (with attic wall reconstruction) which were operated for attic cholesteatoma, tympanosclerosis or adhesive otitis media from January 2017 to December 2019 in our otolaryngology department. Outcomes were evaluated in audiological and morphological dimensions and paired “t” test (significant p value < 0.05) was used to analyse the audiological data. A total of 25 cases (22 primary and 3 revision cases) were included in the study. Defect in attic and posterosuperior canal wall was caused by pathology (disease itself) in 2 cases, surgically created (intraoperatively to clear the disease) in 11 cases and both by pathology and surgically in 12 cases. 22 cases had successful graft uptake, with a morphological success rate of 88%, whereas graft failure was encountered in 3 cases. Complications observed were post-operative otorrhea (2 cases), recurrence (3 cases), no hearing improvement despite intact graft (1 case) and worsening of hearing post operatively in 1 case. Pre-operative ACT (Air conduction threshold) was 45.96 ± 12.47 dB and the post-operative ACT was 38.61 ± 9.76 dB (p value = 0.0246). Pre-operative ABG (Air–bone gap) was reduced from 30.58 ± 11.06 dB to the post-operative ABG of 21.89 ± 6.24 dB (p value = 0.0013). Reconstruction of postero-superior canal wall and attic defects in CAT using auricular cartilage and fibro-periosteal tissue (over mastoid cortex) is a novel method and associated with satisfactory morphological and audiological results. It is also effective in preventing postoperative retractions.
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Dr Apoorva Kumar Pandey, Dr Arvind Varma, Dr Chetan Bansal, Dr Aparna Bhardwaj, and Dr Lalit Pokharia declares that they have no conflict of interest.
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Work was done at Shri Mahant Indiresh Hospital, Dehradun, Uttarakhand, India.
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Pandey, A.K., Varma, A., Bansal, C. et al. The Emerging Surgical Concepts and Principles of Attic and Postero-Superior Wall Reconstruction by Auricular Cartilage and Free Fibro-Periosteal Tissue in Middle Ear Surgery. An Exposition on Surgical Experiences, Observations and Mistakes. Indian J Otolaryngol Head Neck Surg 74 (Suppl 3), 4372–4380 (2022). https://doi.org/10.1007/s12070-021-02989-9
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DOI: https://doi.org/10.1007/s12070-021-02989-9