A bone-thickness map as a guide for bone-anchored port implantation surgery in the temporal bone

Guignard, Jérémie; Arnold, Andreas Michael; Weisstanner, Christian; Caversaccio, Marco; Stieger, Christof (2013). A bone-thickness map as a guide for bone-anchored port implantation surgery in the temporal bone. Materials, 6(11), pp. 5291-5301. Molecular Diversity Preservation International MDPI 10.3390/ma6115291

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The bone-anchored port (BAP) is an investigational implant, which is intended to be fixed on the temporal bone and provide vascular access. There are a number of implants taking advantage of the stability and available room in the temporal bone. These devices range from implantable hearing aids to percutaneous ports. During temporal bone surgery, injuring critical anatomical structures must be avoided. Several methods for computer-assisted temporal bone surgery are reported, which typically add an additional procedure for the patient. We propose a surgical guide in the form of a bone-thickness map displaying anatomical landmarks that can be used for planning of the surgery, and for the intra-operative decision of the implant’s location. The retro-auricular region of the temporal and parietal bone was marked on cone-beam computed tomography scans and tridimensional surfaces displaying the bone thickness were created from this space. We compared this method using a thickness map (n = 10) with conventional surgery without assistance (n = 5) in isolated human anatomical whole head specimens. The use of the thickness map reduced the rate of Dura Mater exposition from 100% to 20% and
Materials 2013, 6 5292
suppressed sigmoid sinus exposures. The study shows that a bone-thickness map can be
used as a low-complexity method to improve patient’s safety during BAP surgery in the
temporal bone.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Ear, Nose and Throat Disorders (ENT)
04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic and Interventional Neuroradiology
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Hearing Research Laboratory

UniBE Contributor:

Guignard, Jérémie, Arnold, Andreas Michael, Weisstanner, Christian, Caversaccio, Marco


600 Technology > 610 Medicine & health




Molecular Diversity Preservation International MDPI




Martin Kompis

Date Deposited:

07 Mar 2014 11:36

Last Modified:

05 Dec 2022 14:29

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

temporal bone; bone-anchored port; surgical guide; computer-assisted surgery; bonebridge





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