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73. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC)
Joint Meeting mit der Griechischen Gesellschaft für Neurochirurgie

Deutsche Gesellschaft für Neurochirurgie (DGNC) e. V.

29.05. - 01.06.2022, Köln

Long-term outcomes using dynamic rod and screw system in degenerative lumbar spine pathologies

Langzeitergebnisse bei Verwendung eines dynamischen Stab- und Schraubensystems bei degenerativen Pathologien der Lendenwirbelsäule

Meeting Abstract

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  • presenting/speaker Dustin Grimm - EDU Medical College, Kalkara, Malta
  • Felix Corr - EDU Medical College, Kalkara, Malta
  • Ralf Rothörl - Isarklinikum, Neuro- & Wirbelsäulenchirurgie, München, Deutschland

Deutsche Gesellschaft für Neurochirurgie. 73. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), Joint Meeting mit der Griechischen Gesellschaft für Neurochirurgie. Köln, 29.05.-01.06.2022. Düsseldorf: German Medical Science GMS Publishing House; 2022. DocP030

doi: 10.3205/22dgnc344, urn:nbn:de:0183-22dgnc3443

Published: May 25, 2022

© 2022 Grimm et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at



Objective: Neural compression syndromes and instability are the foremost indications for spinal surgery. Spinal instability is usually treated by a rigid stabilization system. However, rigid fusion leads to an irreversible loss of motion in the affected spinal segment, restricting spinal movement and resulting in adjacent segment degeneration. Alternatively, dynamic stabilization can be performed. The aim of this study was to analyze the clinical long-term outcomes in terms of pain and disability performing percutaneous dynamic spinal stabilization.

Methods: We performed a single-center prospective cohort study in 57 patients who underwent percutaneous dynamic spinal stabilization between November 2015 and July 2016. Included were 32 women and 25 (mean 57 years, range 26-74 years) presenting with either lumbar degenerative spondylolisthesis (Meyerding Grade I), osteochondrosis, recurrent disc herniation, or lumbar spinal stenosis. VAS and ODI were assessed preoperatively, at a 1-year and 5-year follow-up.

Results: VAS scores were significantly higher preoperatively than after dynamic stabilization (mean preop. 6.25±1.42), at 1-year follow-up (mean 1.84±1.32), and at 5-year follow-up (mean of 2.21±1.57) (p0.05), regarding the 1-year and 5-year follow-up for both VAS and ODI scores. Postoperatively, no wound infections occurred, and no revision surgery was required due to screw malposition. One patient required revision surgery due to epidural hemorrhage.

Conclusion: The results of the present study showed significant long-term improvements in both VAS and ODI scores. This study thus highlights the sustained positive effect in terms of improvement of pain symptoms and disability while preserving the residual mobility of a lumbar segment. Therefore, dynamic stabilization might offer a low-risk and valuable alternative to rigid stabilization, especially with regard to long-term outcomes.