Fulltext

Topographic bone thickness maps for Bonebridge implantations

Wimmer, Wilhelm ; Gerber, Nicolas ; Guignard, Jérémie ; Dubach, Patrick ; Kompis, Martin ; Weber, Stefan ; Caversaccio, Marco

In: European Archives of Oto-Rhino-Laryngology, 2015, vol. 272, no. 7, p. 1651-1658

Zum persönliche Liste hinzufügen
    Titel
    • Topographic bone thickness maps for Bonebridge implantations
    Autor
    • Wimmer, Wilhelm. ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland
    • Gerber, Nicolas. ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland
    • Guignard, Jérémie. ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland
    • Dubach, Patrick. Department of Otorhinolaryngology Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland
    • Kompis, Martin. Department of Otorhinolaryngology Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland
    • Weber, Stefan. ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland
    • Caversaccio, Marco. Department of Otorhinolaryngology Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland
    Dokumententyp
    • Postprint
    Sprache
    • Englisch
    Veröffentlicht in
    • European Archives of Oto-Rhino-Laryngology, 2015, vol. 272, no. 7, p. 1651-1658. Springer Berlin Heidelberg
    Andere elektronische Ausgabe
    OAI-PMH-ID
    • oai:doc.rero.ch:332926
    Summary
    Bonebridge™ (BB) implantation relies on optimal anchoring of the bone-conduction implant in the temporal bone. Preoperative position planning has to account for the available bone thickness minimizing unwanted interference with underlying anatomical structures. This study describes the first clinical experience with a planning method based on topographic bone thickness maps (TBTM) for presigmoid BB implantations. The temporal bone was segmented enabling three-dimensional surface generation. Distances between the external and internal surface were color encoded and mapped to a TBTM. Suitable implant positions were planned with reference to the TBTM. Surgery was performed according to the standard procedure (n=7). Computation of the TBTM and consecutive implant position planning took 70min on average for a trained technician. Surgical time for implantations under passive TBTM image guidance was 60min, on average. The sigmoid sinus (n=5) and dura mater (n=1) were exposed, as predicted with the TBTM. Feasibility of the TBTM method was shown for standard presigmoid BB implantations. The projection of three-dimensional bone thickness information into a single topographic map provides the surgeon with an intuitive display of the anatomical situation prior to implantation. Nevertheless, TBTM generation time has to be significantly reduced to simplify integration in clinical routine.