ArticleEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2025
Evaluating round window niche visibility in cochlear implantation: anatomical insights and electrode insertion strategies.
Article in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Imaging-identified round window niche veil and intratympanic therapy efficacy in sudden sensorineural hearing loss.Annals of medicine · 2026Article
- The cochlear morphometry compendium: High-resolution synchrotron measurements and normative reference values.Journal of anatomy · 2026Article
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5 authors.
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Abstract
purposeCochlear implantation (CI) surgery is essential for restoring hearing in individuals with severe sensorineural hearing loss. Accurate placement of the electrode within the cochlea is essential for successful auditory outcomes and minimizing complications. This study aims to analyze the relationship between the round window niche (RWN) alignment, its visibility during surgery, and the impact on surgical techniques and outcomes.
methodsA retrospective study was conducted, examining high-resolution computed tomography (CT) scans of the temporal bone from 103 patients who underwent CI. RWN visibility was assessed using the St. Thomas Hospital (STH) classification. Anatomical parameters such as the angles of RWN alignment relative to the lateral semicircular canal (LSCC) plane and the distances to the facial nerve were measured and recorded.
resultsThe analysis revealed that RWN alignment angles did not significantly correlate with RWN visibility. However, specific anatomical distances, such as the anteroposterior distance between the round window membrane (RWM) and the facial nerve, were significantly associated with improved RWN visibility.
conclusionPreoperative knowledge of RWN anatomy, particularly its relationship with the facial nerve, can reduce the complexity of CI surgery. Understanding these anatomical variations is essential for optimizing surgical outcomes. Future research should explore additional cochlear axis orientations to enhance surgical techniques and improve visibility assessments during CI procedures.
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