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  Contents > Previous page > Article detail print Order
o Issue N# 4 - 2003 o

OTOLOGY

Hearing results in stapes surgery using two different prosthesis


Authors : M. Casale, A. De Franco, F. Salvinelli, F. Piazza, A. Vincenzi, C. Zini (Rome)

Ref. : Rev Laryngol Otol Rhinol. 2003;124,4:255-258.

Article published in english
Downloadable PDF document english



Summary : Aim of the study: Evaluation of hearing results after implantation of a fluoroplastic-platinum piston (FP) and of a titanium piston (T) with a shaft diameter of respectively 0.6 mm and 0.4 mm, in cases of otosclerosis requiring stapedotomy. Material and methods: Pre-operative and post-operative hearing results obtained after primary stapedotomy by implantation of 30 FP and 30 T performed by the same expert author (C.Z.) were reviewed. In each patient we evaluated pre- and post-operative auditory thresholds, as recommended. Results: all patients of both groups showed a significant air-bone gap (ABG) improvement for all frequencies after surgery (P<0.001). Post-operative ABG comparison between the two groups showed a better ABG for lower frequencies in the FP group and for higher frequencies in the T group, but the difference was not significant. No post-operative complications, including sensorineural hearing loss, were found. Bone conduction improvement was better in the FP group than in the T one and this difference was statistically significant at 1000 and 2000 Hz. There was no statistically significant difference in the post-operative outcomes between the two prosthesis. Better results of FP for lower frequencies suggest that an increase in diameter of the prosthesis results in a greater improvement in the hearing threshold at low frequencies, while a decrease of diameter results in a greater improvement in the hearing threshold at high frequencies, as indicated by previous international studies. Conclusion: our data shows that titanium piston is as good as fluoroplastic piston in stapes surgery for otosclerosis.

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