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Merhof, Dorit

Biomedical Engineering / Biomedizinische Technik

Joint Journal of the German Society for Biomedical Engineering in VDE and the Austrian and Swiss Societies for Biomedical Engineering and the German Society of Biomaterials

Editor-in-Chief: Dössel, Olaf

Editorial Board: Augat, Peter / Habibović, Pamela / Haueisen, Jens / Jahnen-Dechent, Wilhelm / Jockenhoevel, Stefan / Knaup-Gregori, Petra / Leonhardt, Steffen / Plank, Gernot / Radermacher, Klaus M. / Schkommodau, Erik / Stieglitz, Thomas / Boenick, Ulrich / Jaramaz, Branislav / Kraft, Marc / Lenarz, Thomas / Lenthe, Harry / Lo, Benny / Mainardi, Luca / Micera, Silvestro / Penzel, Thomas / Robitzki, Andrea A. / Schaeffter, Tobias / Snedeker, Jess G. / Sörnmo, Leif / Sugano, Nobuhiko / Werner, Jürgen /

IMPACT FACTOR 2018: 1.007
5-year IMPACT FACTOR: 1.390

CiteScore 2018: 1.24

SCImago Journal Rank (SJR) 2018: 0.282
Source Normalized Impact per Paper (SNIP) 2018: 0.831

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Volume 63, Issue 4


Volume 57 (2012)

A new in vitro spine test rig to track multiple vertebral motions under physiological conditions

Agnes Beckmann
  • Corresponding author
  • RWTH Aachen University, Institute of General Mechanics, Aachen, Germany, Phone: +49-2414-80 94596
  • Email
  • Other articles by this author:
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/ Christian Herren / Marion Mundt
  • RWTH Aachen University, Institute of General Mechanics, Aachen, Germany, Phone: +49-2414-80 94596
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Jan Siewe / Philipp Kobbe / Rolf Sobottke
  • Medizinischen Zentrums StädteRegion Aachen, Department for Orthopedic Surgery Würselen, Nordrhein-Westfalen, Germany
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Hans-Christoph Pape / Marcus Stoffel
  • RWTH Aachen University, Institute of General Mechanics, Aachen, Germany, Phone: +49-2414-80 94596
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  • De Gruyter OnlineGoogle Scholar
/ Bernd Markert
  • RWTH Aachen University, Institute of General Mechanics, Aachen, Germany, Phone: +49-2414-80 94596
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2017-04-27 | DOI: https://doi.org/10.1515/bmt-2016-0173


In vitro pure moment spine tests are commonly used to analyse surgical implants in cadaveric models. Most of the tests are performed at room temperature. However, some new dynamic instrumentation devices and soft tissues show temperature-dependent material properties. Therefore, the aim of this study is to develop a new test rig, which allows applying pure moments on lumbar spine specimens in a vapour-filled chamber at body temperature. As no direct sight is given in the vapour-filled closed chamber, a magnetic tracking (MT) system with implantable receivers was used. Four human cadaveric lumbar spines (L2–L5) were tested in a vapour atmosphere at body temperature with a native and rigid instrumented group. In conclusion, the experimental set-up allows vertebral motion tracking of multiple functional spinal units (FSUs) in a moisture environment at body temperature.

Keywords: biomechanics; body temperature; implant; in vitro; kinematics; spine


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About the article

Received: 2016-08-24

Accepted: 2017-02-15

Published Online: 2017-04-27

Published in Print: 2018-07-26

Author Statement

Research funding: This project is partially funded by START RWTH Research grants.

Conflict of interest: Authors state no conflict of interest.

Informed consent: Informed consent is not applicable.

Ethical approval: The conducted research is not related to either human or animals use.

Citation Information: Biomedical Engineering / Biomedizinische Technik, Volume 63, Issue 4, Pages 341–347, ISSN (Online) 1862-278X, ISSN (Print) 0013-5585, DOI: https://doi.org/10.1515/bmt-2016-0173.

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