Use of a 3D reconstruction model in a patient with severe atresia auris for optimal placement of Bonebridge transcutaneous bone conduction implant.

Purpose: Patients affected by severe atresia auris (AA) can be a challenge during hearing restoration surgery due to the abnormal position of vascular and nervous structures in the bone. A 3D reconstruction model of malformed temporal bones can be helpful for planning surgery and optimizing intra-, peri-, and post-operative results.
Method: A 5-year-old girl with severe AA on the right side was implanted with a Bonebridge transcutaneous bone conduction implant (tBCI). 3D printing was used to reproduce the malformed temporal bone, find a good position for the tBCI and plan out the surgical details in advance. Hearing tests were performed before and after surgery and information about intra-, peri-, and post-operative outcomes were collected.
Results: The patient did not show any negative outcomes and, thanks to the Bonebridge, completely recovered hearing on the right side.
Conclusions: 3D printing is a useful tool for planning surgery in AA patients and for preventing possible risks related to the unknown malformed anatomy.
(© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.)