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Comparison of the Dynesys Dynamic Stabilization System and Posterior Lumbar Interbody Fusion for Lumbar Degenerative Disease

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  • Yang Zhang
  • Jian-Lin Shan
  • Xiu-Mei Liu
  • Fang Li
  • Kai Guan
  • Tian-Sheng Sun

Abstract

Background: There have been few studies comparing the clinical and radiographic outcomes between the Dynesys dynamic stabilization system and posterior lumbar interbody fusion (PLIF). The objective of this study is to compare the clinical and radiographic outcomes of Dynesys and PLIF for lumbar degenerative disease. Methods: Of 96 patients with lumbar degenerative disease included in this retrospectively analysis, 46 were treated with the Dynesys system and 50 underwent PLIF from July 2008 to March 2011. Clinical and radiographic outcomes were evaluated. We also evaluated the occurrence of radiographic and symptomatic adjacent segment degeneration (ASD). Results: The mean follow-up time in the Dynesys group was 53.6 ± 5.3 months, while that in the PLIF group was 55.2 ± 6.8 months. At the final follow-up, the Oswestry disability index and visual analogue scale score were significantly improved in both groups. The range of motion (ROM) of stabilized segments in Dynesys group decreased from 7.1 ± 2.2° to 4.9 ± 2.2° (P

Suggested Citation

  • Yang Zhang & Jian-Lin Shan & Xiu-Mei Liu & Fang Li & Kai Guan & Tian-Sheng Sun, 2016. "Comparison of the Dynesys Dynamic Stabilization System and Posterior Lumbar Interbody Fusion for Lumbar Degenerative Disease," PLOS ONE, Public Library of Science, vol. 11(1), pages 1-10, January.
    • Handle: RePEc:plo:pone00:0148071
    DOI: 10.1371/journal.pone.0148071
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