Independent Registration and Virtual Controlled Reduction of Pelvic Ring Fractures (original) (raw)

Abstract

This study presents a new developed software module for Computer Assisted Surgery (Surgigate, Medivision, Oberdorf, Switzerland), allowing independent registration of two fragments and real time virtual representation while reduction occurs.

Three fracture models were used to evaluate the accuracy: geometric foam blocks, a pelvic ring injury with symphysis and disruption of SI-joint and a pelvic ring fracture with symphysis disruption and transforaminal sacral fracture. One examiner performed both visual and virtual controlled reduction. To measure the residual displacement a magnetic motion tracking device was used. The results revealed significantly increased residual displacement with virtual compared with visual control. The differences were low, averaging 1 mm residual translation and 0.7à angulation respectively. This residual displacement may not be clinically relevant. Further development of the software prototype as integration of surface registration may lead to improved handling and facilitated multifragment tracking. Use in the clinical setting seems possible within a short time.

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Authors and Affiliations

  1. Trauma Department, Hannover Medical School, 30625, Hannover, Germany
    T. Hüfner, M. Citak, J. Geerling & C. Krettek M.D.
  2. Department for Orthopedic Biomechanics, M. E. Müller Institute, Bern, Switzerland
    S. Tarte & L. P. Nolte
  3. Radiology Dept., Hannover Medical School, Hannover, Germany
    H. Rosenthal
  4. Trauma Department, University of Saarland, 66421, Homburg, Germany
    T. Pohlemann

Authors

  1. T. Hüfner
  2. M. Citak
  3. S. Tarte
  4. J. Geerling
  5. T. Pohlemann
  6. H. Rosenthal
  7. L. P. Nolte
  8. C. Krettek M.D.

Editor information

Editors and Affiliations

  1. Image Sciences Institute, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
    Wiro J. Niessen & Max A. Viergever &

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© 2001 Springer-Verlag Berlin Heidelberg

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Hüfner, T. et al. (2001). Independent Registration and Virtual Controlled Reduction of Pelvic Ring Fractures. In: Niessen, W.J., Viergever, M.A. (eds) Medical Image Computing and Computer-Assisted Intervention – MICCAI 2001. MICCAI 2001. Lecture Notes in Computer Science, vol 2208. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45468-3\_132

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