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2015 ; 19
(4
): 343-8
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Active Bone Conduction Prosthesis: Bonebridge(TM)
#MMPMID26491482
Zernotti ME
; Sarasty AB
Int Arch Otorhinolaryngol
2015[Oct]; 19
(4
): 343-8
PMID26491482
show ga
Introduction?Bone conduction implants are indicated for patients with conductive
and mixed hearing loss, as well as for patients with single-sided deafness (SSD).
The transcutaneous technology avoids several complications of the percutaneous
bone conduction implants including skin reaction, skin growth over the abutment,
and wound infection. The Bonebridge (MED-EL, Austria) prosthesis is a
semi-implantable hearing system: the BCI (Bone Conduction Implant) is the
implantable part that contains the Bone Conduction-Floating Mass Transducer
(BC-FMT), which applies the vibrations directly to the bone; the external
component is the audio processor Amadé BB (MED-EL, Austria), which digitally
processes the sound and sends the information through the coil to the internal
part. Bonebridge may be implanted through three different approaches: the
transmastoid, the retrosigmoid, or the middle fossa approach. Objective?This
systematic review aims to describe the world?s first active bone conduction
implant system, Bonebridge, as well as describe the surgical techniques in the
three possible approaches, showing results from implant centers in the world in
terms of functional gain, speech reception thresholds and word recognition
scores. Data Synthesis?The authors searched the MEDLINE database using the key
term Bonebridge. They selected only five publications to include in this
systematic review. The review analyzes 20 patients that received Bonebridge
implants with different approaches and pathologies. Conclusion?Bonebridge is a
solution for patients with conductive/mixed hearing loss and SSD with different
surgical approaches, depending on their anatomy. The system imparts fewer
complications than percutaneous bone conduction implants and shows proven
benefits in speech discrimination and functional gain.