caa a22 4500 606184031 CHVBK 20210128100824.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s00405-014-2976-8 doi (NATIONALLICENCE)springer-10.1007/s00405-014-2976-8 Topographic bone thickness maps for Bonebridge implantations [Elektronische Daten] [Wilhelm Wimmer, Nicolas Gerber, Jérémie Guignard, Patrick Dubach, Martin Kompis, Stefan Weber, Marco Caversaccio] 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. Springer-Verlag Berlin Heidelberg, 2014 Bone-conduction implants nationallicence Preoperative planning nationallicence Temporal bone nationallicence Passive image guidance nationallicence Wimmer Wilhelm ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland aut Gerber Nicolas ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland aut Guignard Jérémie ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland aut Dubach Patrick Department of Otorhinolaryngology Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland aut Kompis Martin Department of Otorhinolaryngology Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland aut Weber Stefan ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland aut Caversaccio Marco Department of Otorhinolaryngology Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland aut European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/7(2015-07-01), 1651-1658 0937-4477 272:7<1651 2015 272 405 https://doi.org/10.1007/s00405-014-2976-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00405-014-2976-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wimmer Wilhelm ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland aut NATIONALLICENCE 700 1- Gerber Nicolas ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland aut NATIONALLICENCE 700 1- Guignard Jérémie ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland aut NATIONALLICENCE 700 1- Dubach Patrick Department of Otorhinolaryngology Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland aut NATIONALLICENCE 700 1- Kompis Martin Department of Otorhinolaryngology Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland aut NATIONALLICENCE 700 1- Weber Stefan ARTORG Center for Biomedical Engineering Research, University of Bern, Murtenstrasse 50, 3010, Bern, Switzerland aut NATIONALLICENCE 700 1- Caversaccio Marco Department of Otorhinolaryngology Head and Neck Surgery, Inselspital, University of Bern, Bern, Switzerland aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/7(2015-07-01), 1651-1658 0937-4477 272:7<1651 2015 272 405