Influence of backside loading on the floating mass transducer: An in vitro experimental study

Influence of backside loading on the floating mass transducer: An in vitro experimental study KeypointsFloating mass transducer.Round window vibroplasty.Active middle ear implant.Tympanoplasty.INTRODUCTIONThe treatment of conductive, sensorineural and mixed hearing loss with an active middle‐ear implant (AMEI)—consisting of a floating mass transducer (FMT) connected to vibrating remnants of the ossicular chain, the so‐called vibroplasty—has proven to be a feasible and successful option for hearing rehabilitation. In cases lacking useful remnants of the ossicular chain or where the oval window in the middle ear is not accessible, a round window vibroplasty, such as the direct stimulation of the inner ear with the FMT placed at the round window membrane (RWM), still allows for successful hearing rehabilitation. Clinical studies have reported a variety of coupling techniques for an FMT facing the round window membrane, that is the front side, which may also account for the reported variance of the achieved audiometric results. Consequently, the most effective coupling method is still a matter of debate.In this regard, various in vitro studies have focused on the efficiency of different coupling techniques for the FMT at its front side facing the round window membrane, advocating the interposition of individually shaped cartilage or soft tissue (eg fascia or perichondrium), and the application of low contact pressure for an ideal backward http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Clinical Otolaryngology Wiley

Influence of backside loading on the floating mass transducer: An in vitro experimental study

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
© 2018 John Wiley & Sons Ltd
ISSN
1749-4478
eISSN
1749-4486
D.O.I.
10.1111/coa.13017
Publisher site
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Abstract

KeypointsFloating mass transducer.Round window vibroplasty.Active middle ear implant.Tympanoplasty.INTRODUCTIONThe treatment of conductive, sensorineural and mixed hearing loss with an active middle‐ear implant (AMEI)—consisting of a floating mass transducer (FMT) connected to vibrating remnants of the ossicular chain, the so‐called vibroplasty—has proven to be a feasible and successful option for hearing rehabilitation. In cases lacking useful remnants of the ossicular chain or where the oval window in the middle ear is not accessible, a round window vibroplasty, such as the direct stimulation of the inner ear with the FMT placed at the round window membrane (RWM), still allows for successful hearing rehabilitation. Clinical studies have reported a variety of coupling techniques for an FMT facing the round window membrane, that is the front side, which may also account for the reported variance of the achieved audiometric results. Consequently, the most effective coupling method is still a matter of debate.In this regard, various in vitro studies have focused on the efficiency of different coupling techniques for the FMT at its front side facing the round window membrane, advocating the interposition of individually shaped cartilage or soft tissue (eg fascia or perichondrium), and the application of low contact pressure for an ideal backward

Journal

Clinical OtolaryngologyWiley

Published: Jan 1, 2018

Keywords: ; ; ;

References

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