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Research

COMPARING STABLE MULTILEVEL LUMBAR STENOSIS TREATED BY SIMPLE DECOMPRESSION VERSUS DECOMPRESSION AND INSTRUMENTED FUSION

The 28th Annual Meeting of the European Orthopaedic Research Society (EORS), held online, 17–18 September 2020.



Abstract

Objective

Lumbar spinal stenosis (LSS) is a common spinal disorder mostly caused by the arthritic process. In cases with refractory complaints or significant neurologic deficit, decompressive surgery with or without instrumented fusion may be indicated. We aimed to investigate the surgical outcome of multi-level LSS in the patient with stable spine treated by simple decompression versus decompression and instrumented fusion. Methods: We retrospectively studied 51 patients (25 male, 26 female) with stable multi-level (>2 levels) LSS who were treated by decompressive surgery alone (group A, 31 cases) and decompression and instrumented fusion (group B, 20 cases) and followed them for more than two years. The patients’ disability and pain were assessed with Oswestry Disability Index (ODI) and Visual Analogue Scale (VAS), respectively. At the last follow-up visit, patient satisfaction with surgery was also scored. Results: The two groups were homogeneous in terms of age, sex, severity of disability and pain. Surgery could significantly improve pain and disability in both groups. Preoperative ODI in group A and B were 51.0±23.7 and 54.5±22.9, respectively, however at the last follow-up visit these parameters improved to 23.1±21.1 and 36.6±21.4 showing a statistical significance. Mean patient satisfaction with surgical intervention was also higher in the simple decompression group, but this difference was not significant. Conclusion: In surgical treatment of the patients with multi-level but stable LSS, simple decompression versus decompression and instrumented fusion could achieve more disability improvement for more than two years of follow-up.