Minimally invasive ossiculoplasty via an endoscopic transtympanic approach.
Eur Ann Otorhinolaryngol Head Neck Dis
; 141(2): 93-97, 2024 Mar.
Article
in En
| MEDLINE
| ID: mdl-37620172
ABSTRACT
INTRODUCTION:
The aim of this study was to evaluate the feasibility of ossiculoplasty via a minimally invasive endoscopic transtympanic approach (ETTA). CASE SERIES We investigated the exposure of target structures (incus and stapes) on 4 human temporal bones by placing an endoscope into the middle ear cleft through the 4 tympanic quadrants. Then, on 3 additional specimens, we performed an incudostapedial disjunction and repaired it with a drop of hydroxyapatite cement via ETTA. We measured the size of tympanic perforation, and the acoustic transfer function of the middle ear (125-8000Hz) before and after repair by placing an insert in the external auditory canal and recording the acoustic signal in the utricle by a microphone. The acoustic signal gain was estimated in dB µV. Exposure was similar in all four quadrants but ergonomics was better with a posteroinferior myringotomy. Ossicular chain repair was conducted successfully in all cases and the acoustic transfer function of the middle ear was significantly improved. Residual tympanic perforation (n=3) was 2±0.3mm in diameter.CONCLUSION:
ETTA to reconstruct incudostapedial joint with bone cement was feasible and effective. It opens perspectives for robot-based procedures guided by augmented reality.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Tympanoplasty
/
Tympanic Membrane Perforation
Limits:
Humans
Language:
En
Journal:
Eur Ann Otorhinolaryngol Head Neck Dis
Year:
2024
Document type:
Article
Affiliation country:
Francia