A bone conduction implant using self-drilling screws : Self-drilling screws as a new fixation method of an active transcutaneous bone conduction hearing implant.
HNO
; 71(Suppl 1): 61-66, 2023 Aug.
Article
em En
| MEDLINE
| ID: mdl-37322168
ABSTRACT
BACKGROUND:
The active transcutaneous bone conduction implant (tBCI; BONEBRIDGE™ BCI 601; MED-EL, Innsbruck, Austria) is fixed to the skull with two self-tapping screws in predrilled screw channels. The aim of this prospective study was to evaluate the safety and effectiveness of fixation with self-drilling screws instead of the self-tapping screws, in order to simplify the surgical procedure. MATERIALS ANDMETHODS:
Nine patients (mean age 37⯱ 16 years, range 14-57 years) were examined pre- and 12 months postoperatively for word recognition scores (WRS) at 65â¯dB SPL, sound-field (SF) thresholds, bone conduction thresholds (BC), health-related quality of life (Assessment of Quality of Life, AQOL-8D questionnaire), and adverse events (AE).RESULTS:
Due to avoidance of one surgical step, the surgical technique was simplified. Mean WRS in SF was 11.1⯱ 22.2% (range 0-55%) pre- and 77.2⯱ 19.9% (range 30-95%) postoperatively; mean SF threshold (pure tone audiometry, PTA4) improved from 61.2⯱ 14.3â¯dB HL (range 37.0-75.3â¯dB HL) to 31.9⯱ 7.2â¯dB HL (range 22.8-45.0â¯dB HL); mean BC thresholds were constant at 16.7⯱ 6.8â¯dB HL (range 6.3-27.5â¯dB HL) pre- and 14.2⯱ 6.2â¯dB HL (range 5.8-23.8â¯dB HL) postoperatively. AQOL-8D mean utility score increased from 0.65⯱ 0.18 preoperatively to 0.82⯱ 0.17 postoperatively. No device-related adverse events occurred.CONCLUSION:
Implant fixation by means of self-drilling screws was safe and effective in all nine patients. There was significant audiological benefit 12 months after implantation.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Percepção da Fala
/
Perda Auditiva Condutiva-Neurossensorial Mista
/
Auxiliares de Audição
Tipo de estudo:
Observational_studies
Aspecto:
Patient_preference
Limite:
Adolescent
/
Adult
/
Humans
/
Middle aged
Idioma:
En
Revista:
HNO
Ano de publicação:
2023
Tipo de documento:
Article