ArticleGlobal spine journal2026
Impact of Concomitant Grade I Degenerative Spondylolisthesis on Clinical and Radiographic Outcomes Following Biportal Endoscopic versus Microscopic Laminectomy for Lumbar Spinal Stenosis: A Post Hoc Analysis of a Multicenter Randomized Clinical Trial.
Article in Global spine journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
3 citing papers in PubMed.
- Article
- Article
- Impact of Concomitant Grade I Degenerative Spondylolisthesis on Clinical and Radiographic Outcomes.Global spine journal · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Study DesignPost hoc analysis.ObjectiveTo determine whether Meyerding grade I degenerative spondylolisthesis (DS1) modifies 12-month clinical or radiographic outcomes after biportal endoscopic laminectomy (BE-L) versus microscopic laminectomy (M-L) for lumbar spinal stenosis, and to compare the two techniques among patients with DS1.MethodsOf 120 randomized ENDO-BS participants, 101 who underwent single-level decompression with classifiable spondylolisthesis status were analyzed (BE-L, n=49; M-L, n=52) and stratified by DS1 status. Outcomes were assessed preoperatively, at 2 weeks, and at 3, 6, and 12 months. Linear mixed-effects models tested group × time interactions within each arm and between techniques among patients with DS1.ResultsAll patient-reported outcomes improved significantly from baseline to 12 months in every subgroup, and no DS1 × time interaction reached significance in either arm. Among patients with DS1, no significant between-technique difference or technique × time interaction was detected for any clinical outcome. Slip percentage and the instability ratio (flexion-extension angular motion) increased modestly over time in both arms, but no radiographic parameter differed significantly between techniques. Complication rates did not differ by DS1 status.ConclusionIn this exploratory analysis, concomitant Meyerding DS1 was not associated with significantly different 12-month outcomes after BE-L or M-L. Among patients with stable DS1, no significant differences between techniques were detected; slip percentage and the instability ratio increased modestly in both arms. Longer follow-up is required to clarify the late significance of this progression.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.