Long-term Outcome After Monosegmental L4/5 Stabilization for Degenerative Spondylolisthesis With the Dynesys Device

Clinical Spine Surgery : a Spine Publication
Sven HoppeUlrich Berlemann

Abstract

Retrospective analysis of prospectively collected clinical data. To assess the long-term outcome of patients with monosegmental L4/5 degenerative spondylolisthesis treated with the dynamic Dynesys device. The Dynesys system has been used as a semirigid, lumbar dorsal pedicular stabilization device since 1994. Good short-term results have been reported, but little is known about the long-term outcome after treatment for degenerative spondylolisthesis at the L4/5 level. A total of 39 consecutive patients with symptomatic degenerative lumbar spondylolisthesis at the L4/5 level were treated with bilateral decompression and Dynesys instrumentation. At a mean follow-up of 7.2 years (range, 5.0-11.2 y), they underwent clinical and radiographic evaluation and quality of life assessment. At final follow-up, back pain improved in 89% and leg pain improved in 86% of patients compared with preoperative status. Eighty-three percent of patients reported global subjective improvement. Ninety-two percent would undergo the surgery again. Eight patients (21%) required further surgery because of symptomatic adjacent segment disease (6 cases), late-onset infection (1 case), and screw breakage (1 case). In 9 cases, radiologic progression of spondyl...Continue Reading

References

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Dec 15, 2010·Operative Orthopädie und Traumatologie·Othmar Schwarzenbach, Ulrich Berlemann

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Citations

Apr 1, 2016·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·R Greiner-PerthC Röder
Nov 2, 2018·Chinese Medical Journal·Yang ZhangLi-Zhi Zhang
Nov 19, 2014·Indian Journal of Orthopaedics·Mingyuan YangMing Li
Nov 19, 2015·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Qi WangLiangbi Xiang
Jan 31, 2019·EFORT Open Reviews·Nick Evans, Michael McCarthy
Aug 11, 2018·Journal of Orthopaedic Surgery and Research·Stavros OikonomidisRolf Sobottke

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Methods Mentioned

BETA
X-Rays

Software Mentioned

SAS
Dynesys

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