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Dynesys fixation for lumbar spine degeneration

Neurosurgical Review volume 31, pages 189–196 (2008)Cite this article

Abstract

The dynamic fixation system Dynesys is utilized in the last 10 years for treatment of degenerative segmental disease of the lumbar spine. Dynesys is a semi-rigid fixation system that allows minimal lengthening and shortening between two segmental pedicle screws as opposed to a rigid metal bar. Thus, the system is regarded to maintain stability and near physiological motion patterns of the lumbar spine. The theoretical advantage of this system is to stabilize the treated segment and to prevent adjacent segment degeneration. The goal of this prospective trial was to evaluate clinical, radiographic, and computed tomography (CT) scan outcomes in 54 consecutive cases. Postoperative complications are discussed in detail. Forty cases were recruited with a mean follow-up of 16 months (range, 12 to 37). Postoperative pain scores (Hannover Activities of Daily Living Questionnaire and VAS for back and leg pain) improved in 29 cases (73%) and was best when dynamic fusion was combined with nerve root decompression. Outcome data were not superior to conventional rigid fusion systems and had a considerable number of complications requiring revision surgery in 27.5% of cases.

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Author information

Affiliations

  1. Department of Surgery, Neurosurgery, Kantonsspital Winterthur, Brauerstrasse 15, 8401, Winterthur, Switzerland

    Matthias Bothmann, Erich Kast & Joachim Oberle

  2. Orthopedic Department, St. Vincent Hospital, Duesseldorf, Germany

    Gerald Jens Boldt

Authors
  1. Matthias Bothmann
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  2. Erich Kast
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  3. Gerald Jens Boldt
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  4. Joachim Oberle
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Correspondence to Matthias Bothmann.

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Bothmann, M., Kast, E., Boldt, G.J. et al. Dynesys fixation for lumbar spine degeneration. Neurosurg Rev 31, 189–196 (2008). https://doi.org/10.1007/s10143-007-0101-9

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  • DOI: https://doi.org/10.1007/s10143-007-0101-9

Keywords

  • Dynamic stabilization
  • Dynesys
  • Lumbar spine
  • Surgical treatment