Institute of Physiology and Pathology of Hearing, ul. Zgrupowania AK “Kampinos” 1, 01-943 Warsaw, Poland
2
World Hearing Center, Mokra 17, Kajetany 05-830 Nadarzyn, Poland
3
Institute of Sensory Organs, Mokra 1, Kajetany 05-830 Nadarzyn, Poland
4
Medical University of Warsaw, Otolaryngology and Rehabilitation Clinic of the Physiotherapy Division of the
Second Faculty of Medicine, Żwirki i Wigury 61, 02-091 Warsaw, Poland
Publication date: 2012-09-30
Corresponding author
Monika Matusiak
Monika Matusiak MD, PhD, Otorhinolaryngosurgery Clinic, World Hearing Center,
Mokra 17, 05-830 Nadarzyn, Poland, e-mail: m.matusiak@ifps.org.pl
Background: To maximise the success of cochlear implantation, optimal placement of the electrodes inside the cochlea is required. Hearing preservation also means that intracochlear spaces must be approached in a way that avoids traumatising inner ear structures.
Material and Methods: In order to examine this issue a literature search was performed targeting articles on surgical techniques
used in partial deafness cochlear implantation. The aim was to evaluate the advantages and shortcomings of each technique.
Results: In cochlear implantation two main approaches to the middle ear have been described: mastoidectomy/posterior tympanostomy and suprameatal. Two approaches to the inner ear are in use: cochleostomy and round window.
Conclusions: From temporal bone studies and clinical work some general conclusion can be drawn: straight arrays should use
round window insertion, and precurved arrays should use cochleostomy
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