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Short-term effects of a dynamic neutralization system (Dynesys) for multi-segmental lumbar disc herniation

European Spine Journal volume 25, pages 1409–1416 (2016)Cite this article

Abstract

Purpose

To determine the safety and short-term curative effects of internal fixation using a dynamic neutralization system (Dynesys) for multi-segmental lumbar disc herniation (ms-LDH) with the control group treated by posterior lumbar interbody fusion (PLIF).

Methods

Forty-five patients with ms-LDH were selected as study group treated with Dynesys and 40 patients as control group with PLIF. The surgical efficacy was evaluated by comparing the visual analogue scale (VAS) scores, the Oswestry Disability Index (ODI) scores and the ROMs of the adjacent segment before and after surgery. The postoperative complications related to the implants were identified.

Results

All patients were followed up for an average duration of over 30 months. Dynesys stabilization resulted in significantly higher preservation of motion at the index level (p < 0.001), and significantly less (p < 0.05) hypermobility at the adjacent segments. VAS for back and leg pain and ODI improved significantly (p < 0.05) with both the methods, but there was no significant difference between the groups.

Conclusions

The non-fusion fixation system Dynesys is safe and effective regarding short-term curative effects for the treatment of ms-LDH.

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Acknowledgments

No funds were received in support of this work. No benefits in any form have been or will be received from a commercial party related directly or indirectly to the subject of this manuscript.

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  1. Department of Orthopedics, The General Hospital of Shenyang Military Commanding Area, No 83, Wenhua Road, 110840, Shenyang, China

    Qi Wang, Jun Liu, Ying Shi, Yu Chen, Hailong Yu, Junxiong Ma, Weijian Ren, Huifeng Yang, Hongwei Wang & Liangbi Xiang

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  1. Qi Wang
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  2. Jun Liu
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Correspondence to Liangbi Xiang.

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Jun Liu is the co-first author.

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Wang, Q., Liu, J., Shi, Y. et al. Short-term effects of a dynamic neutralization system (Dynesys) for multi-segmental lumbar disc herniation. Eur Spine J 25, 1409–1416 (2016). https://doi.org/10.1007/s00586-015-4307-1

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  • DOI: https://doi.org/10.1007/s00586-015-4307-1

Keywords

  • Dynamic neutralization system (Dynesys)
  • Non-fusion
  • Multi-segmental lumbar disc herniation (ms-LDH)
  • Posterior lumbar interbody fusion (PLIF)