Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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Πέμπτη 3 Μαΐου 2018

Glass ionomer cement: An attractive alternative for the reconstruction of incudostapedial joint discontinuity

BS Yogeesha, K Rohit, Nagaraj Maradi

Indian Journal of Otology 2017 23(4):222-225

Background: Chronic suppurative otitis media (CSOM) is a rampant clinical entity in India, and hearing loss is a very debilitating condition which is treatable. Hence, ossiculoplasty is a frequently combined operation with myringoplasty to reconstruct the hearing apparatus of a CSOM patient. Ossiculoplasty can be accomplished through autograft, homograft, and allograft materials. The glass ionomer cement (GIC) included under bone cement is biocompatible and easily available, for restoring the ossicular continuity, more specifically, the incudostapedial joint. Objective: The purpose of this study is to evaluate hearing improvement after repair of ossicular discontinuity between the incus and stapes with GIC. Materials and Methods: This prospective clinical study was conducted in a tertiary care hospital. CSOM patients found to have incudostapedial joint discontinuity intraoperative underwent ossiculoplasty with GIC. Postoperatively, hearing was evaluated at 1 month and 3 months. Audiometric pure-tone threshold by air conduction (AC) was recorded at 0.5, 1, 2, 3, 4, 6, and 8 kHz and by bone conduction at 0.5, 1, 2, 3, and 4 kHz. As per the AAO-CHE guidelines, thresholds at 0.5, 1, 2, and 3 kHz were used to calculate the Pure Tone Average (PTA). The air-bone gap (ABG) was calculated for each patient and the results were tabulated. Results: At the end of each predesignated PTA evaluation, postoperatively, the patients showed improvement in AC thresholds and narrowing of ABG, which was statistically significant. In our study, after applying GIC, the mean AC was 30.89 dB at the end of 3rd month which was significant improvement. Eighteen patients (66.67%) had closure of ABG <20 dB. Interpretation and Conclusion: The current study reveals that tympano-ossicular reconstruction using GIC is a simple, cost-effective method which gives definite good postoperative hearing improvement. Other advantages are more physiological continuity between the incus and stapes, technically easier application, nonextrusion.

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