Cochlear Implant Fixation Techniques: A Systematic Review of the Literature.

Otol Neurotol

Department of Otorhinolaryngology-Head and Neck Surgery, University Medical Center Utrecht, Utrecht, the Netherlands.

Published: August 2021

Objective: Given the lack of consensus on fixation techniques of the cochlear implant, this review aims to create an up-to-date overview of intra- and postoperative complications, focusing on migration of the internal receiver/stimulator (R/S) device and the electrode array.

Data Sources: On June 29, 2020 we conducted a search in PubMed, Embase, Cochrane, Web of Science, and CINAHL. Keywords were "Cochlear implant," "complication," "migration," and synonyms.

Study Selection: Studies were considered if: 1) the adult study population consisted of ≥ 10 patients, 2) the R/S device was fixated using the bony well or tight subperiostal pocket technique without bone-anchoring sutures or screws on the implant, and 3) migration of the R/S device or displacement of the electrode array were described as outcomes.

Data Extraction: Study characteristics, interventions, follow-up, and outcomes were extracted. For critical appraisal, an adapted version of the Newcastle-Ottawa quality assessment scale for cohort studies was used.

Data Synthesis: Seven studies were included (n = 430 patients). Migration of the R/S device was reported by three studies. Two studies applying the tight pocket technique reported migration rates ranging from 9.0 to 69.2%. One study using the bony bed technique reported migration of 100%, with an average of 2.5 mm. All studies lacked the required standard for comparability, assessment of outcome, and follow-up.

Conclusions And Relevance: There is currently no evidence of a difference between the bony bed- and tight pocket fixation technique, regarding migration of the R/S device or the electrode array, in adult patients.

Download full-text PDF

Source
http://dx.doi.org/10.1097/MAO.0000000000003108DOI Listing

Publication Analysis

Top Keywords

r/s device
20
migration r/s
12
cochlear implant
8
fixation techniques
8
device electrode
8
pocket technique
8
electrode array
8
tight pocket
8
technique reported
8
reported migration
8

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!