Related Experiment Video
Updated: Nov 5, 2025
04:32
Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
Published on: December 20, 2024
581
Long-Term, Multicenter Results With the First Transcutaneous Bone Conduction Implant
Georg Sprinzl1,2, Thomas Lenarz3, Rudolf Hagen4
1Ear, Nose and Throat Department, University Clinic St. Poelten, Karl Landsteiner Private University, St. Poelten.
Summary
This study shows the Bonebridge transcutaneous bone conduction implant (tBCI) is safe and effective for adults and children with hearing loss. Long-term results up to 36 months demonstrate significant improvements in speech perception and preserved residual hearing.
Area of Science:
- Otolaryngology
- Audiology
- Biomedical Engineering
Background:
- Conductive or mixed hearing loss can significantly impair speech perception.
- Transcutaneous bone conduction implants (tBCI) offer a potential solution for hearing restoration.
- Long-term safety and performance data are crucial for evaluating implantable hearing devices.
Purpose of the Study:
- To investigate the long-term safety and performance of the Bonebridge transcutaneous bone conduction implant (tBCI).
- To evaluate audiological outcomes and quality of life in adult and pediatric patients up to 36 months post-implantation.
Main Methods:
- Prospective, single-subject repeated-measures design involving 57 patients (49 adults, 8 children) with conductive or mixed hearing loss.
- Implantation of the Bonebridge tBCI.
- Audiometric testing (PTA4, WRS, SRT50%) and adverse event monitoring up to 36 months postoperatively.
Main Results:
- Significant improvements in speech perception (WRS, SRT50%) and sound field thresholds were observed at all postoperative visits.
- Residual unaided hearing was preserved, as indicated by stable air and bone conduction thresholds.
- All reported adverse events were resolved by the study's end, demonstrating a favorable safety profile.
Conclusions:
- The Bonebridge tBCI demonstrates long-term safety and efficacy in both adult and pediatric populations.
- The implant provides significant audiological benefits for patients with conductive or mixed hearing loss.
- The study confirms the preservation of residual hearing, a key factor in audiological rehabilitation.
