Distance Measurement in Middle Ear Surgery Using a Telemanipulator

  • Thomas Maier
  • Gero Strauss
  • Franz Bauer
  • Andreas Grasser
  • Nobuhiko Hata
  • Tim C. Lueth
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6891)


In this article, a new tool for the intraoperative measurement of distances within the middle ear by means of a micromanipulator is presented. The purpose of this work was to offer the surgeon a highly accurate tool for measuring the distances between two points in the 3D operational field. The tool can be useful in various operations; this article focuses, however, on measuring the distance between the stapes footplate and the long process of the incus of the middle ear. This distance is important for estimating the proper prosthesis length in stapedotomy for treating otosclerosis. We evaluated the system using a simplified mechanical model. Our results show that the system can measure distances with a maximum error of 0.04 mm.


Middle Ear Surgery Telemanipulator Stapedotomy Measurement 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Thomas Maier
    • 1
  • Gero Strauss
    • 2
  • Franz Bauer
    • 1
  • Andreas Grasser
    • 1
  • Nobuhiko Hata
    • 3
  • Tim C. Lueth
    • 1
  1. 1.Institute of Microtechnology and Medical Device Technology (MiMed)Technische Universität MünchenGermany
  2. 2.Department of ENT, University Hospital Leipzig and BMBF Innovation Center Computer Assisted Surgery (ICCAS)University LeipzigGermany
  3. 3.Department of Radiology, Harvard Medical SchoolBrigham and Women’s HospitalUSA

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