ArticleSpine2025
Change in Lumbar Lordosis After Decompressive Surgery in Lumbar Spinal Stenosis Patients and Associations With Patient-Related Outcomes Two Years After Surgery: Radiologic and Clinical Results From the NORDSTEN Spinal Stenosis Trial.
Article in Spine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Cement discoplasty for degenerative low back pain: a delphi consensus survey of expert opinion.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 · 2026Article
- Assessment of lumbosacral spinal curvatures before and after surgery using 3D posturography.Scientific reports · 2025Article
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
STUDY
designA prospective cohort study.
objectiveThe aim was to investigate changes in lumbar lordosis (LL) and its association to changes in patient-reported outcome measures (PROMs) after decompressive surgery for lumbar spinal stenosis (LSS). SUMMARY OF
backgroundFew studies have addressed change in LL after decompression surgery for LSS in relation to outcomes. MATERIALS AND
methodsPreoperative and postoperative data from 310 patients having standing x-ray both before and two years after surgery were included. The patients were grouped based on the change in LL preoperatively to two years after surgery; group 1: <5° (n=196), group 2: ≥5 <10° (n=55), or group 3: ≥10° (n=59) of change in LL. The changes in function, disability and pain were assessed by the Oswestry disability index (ODI), numeric rating scale (NRS), and the Zurich claudication questionnaire (ZCQ). The three groups were compared regarding baseline variables using the ANOVA test for continuous variables and the χ 2 test for categorical variables. The groups were further compared with a likelihood ratio test in relation to changes in PROMs two years after surgery and outcomes were adjusted for respective baseline PROMs, age, sex, smoking, BMI, Schizas, and Pfirrmann scores.
resultsLL was significantly changed at group level two years after surgery with a mean difference of 2.2° (SD: 9.4°) ( P =0.001). The three LL change groups did not show any significant differences in patient characteristics, function, disability, and pain at baseline. The two groups with a change of more than 5° in LL two years after surgery (group 2 and 3) had significantly greater improvements in ODI ( P =0.022) and ZCQ function ( P =0.016) in the adjusted analyses, but was not significant for back and leg pain.
conclusionChanged LL after decompressive surgery for LSS was associated with improved ODI and physical function. Level of Evidence. Level III.
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