References

1. "Hearing gain is defined as the difference between preoperative and postoperative PTA. The weighted hearing gain for 516 atresiaplasty patients in 14 studies was 24.1 dB (95% Cl, 23.4-24.7) compared with 38.0 dB (95% Cl, 35.3-

40.7) for 100 [osseointegrated bone conduction devices] patients in 5 studies. The difference in the hearing gain between atresia surgery and losseointegrated bone conduction devices) was significant (p < 0.001)." (Nadaraja et al. 2013)

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2. "The 2 studies that looked at losseointegrated bone conduction devices] for [congenital aural atresia] on the other hand had a 98.2% (95% Cl, 94.5%Y100.0%) closure of the ABG less than 30 dB in 47 patients. The difference in the ABG between 2 surgeries was significant (p < 0.001)." (Nadaraja et al. 2013)

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3. "Audiological outcomes were discussed in 20 publications.

Improvement against the unaided thresholds was demonstrated. The functional improvement was on average 33.9 dB. The effective gain, or remaining air-bone-gap was on average 6.7 dB. All evaluated data showed aided speech reception thresholds significantly below normal speech level." (Lagerkvist et al. 2020)

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4. "These devices use an osseointegrated percutaneous titanium implant to transmit sound vibrations generated by an external audio processor to the temporal bone. These devices have been well studied and have excellent audiometric results." (Cooper et al. 2017)

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More: Janssen et al. 2012, Goycoolea et al. 2020, Gerdes et al. 2016, Kruyt et al. 2020