Evidence map›Paper›PMID 33372234›Full record

ArticleArchives of orthopaedic and trauma surgery2022

Clinical outcome after lumbar spinal fusion surgery in degenerative spondylolisthesis: a 3-year follow-up.

Maximilian Lenz, S Oikonomidis, R Hartwig, R Gramse, C Meyer, M J Scheyerer, C Hofstetter, P Eysel, J Bredow

Open access · hybridAbstract read
In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.9field-weighted citation impact, top 25% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 16 citations in OpenAlex.

  1. Review
  2. Sleep and Quality of Life Before and After Surgery in Patients With Low-Grade Lumbar Spondylolisthesis.Medical science monitor : international medical journal of experimental and clinical research · 2026
    Observational
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 2 countries.

Maximilian LenzDepartment of Orthopaedic and Trauma Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany. maximilian.lenz@uk-koeln.de.ORCID http://orcid.org/0000-0002-1176-0166
S OikonomidisDepartment of Orthopaedic and Trauma Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.
R HartwigDepartment of Orthopaedic and Trauma Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.
R GramseDepartment of Orthopaedic and Trauma Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.
C MeyerDepartment of Orthopaedic and Trauma Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.
M J ScheyererDepartment of Orthopaedic and Trauma Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.
C HofstetterDepartment of Neurological Surgery, UW Medicine Seattle, Seattle, WA, USA.
P EyselDepartment of Orthopaedic and Trauma Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.
J BredowDepartment of Orthopaedic and Trauma Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.
University Hospital Cologne · DENeurological Surgery · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionLumbar spinal fusion surgery is a widely accepted surgical treatment in degenerative causes of lumbar spondylolisthesis. The benefit of reduction of anterior displacement and restoration of sagittal parameters is still controversially debated. Purpose of the underlying publication was to analyze the influence of radiographic sagittal parameters of the spine in aspects of changes in postoperative clinical outcome. MATERIALS AND

methodsBy prospective analysis, we included patients with low-grade degenerative lumbar spondylolisthesis (Meyerding grades I and II) with mono- or bisegmental fusion surgery with a minimum follow-up data of 3 years. For clinical outcome measures, COMI, ODI and EQ-5D were used. Spinopelvic parameters (sacral inclination, pelvic tilt, sacral slope and pelvic incidence, lumbar lordosis and lumbar index as well as anterior displacement and sagittal rotation) were measured on plain radiographs.

resultsWe could observe a significant benefit in clinical outcome after lumbar fusion surgery in low-grade spondylolisthesis in our mid-term follow-up data including 32 patients. By surgical reduction, we could see significant restoration of anterior displacement and sagittal rotation. Interestingly, a significant correlation between restoration of both sagittal rotation and sacral inclination and clinical outcome score was observed in the 3-year follow-up.

conclusionIn low-grade spondylolisthesis, spinal fusion surgery is a well-established surgical procedure; however, the impact of sagittal parameters and reduction of anterior displacement remains controversial. Within our findings, restoration of sagittal parameters showed significant correlation to improvement in clinical outcome in our mid-term follow-up data.

Indexed as

Spinal FusionSpondylolisthesisAnimalsFollow-Up StudiesHumansLumbar VertebraeLumbosacral RegionRetrospective StudiesTreatment OutcomeClinical outcomeFusion surgeryReductionSagittal balanceSpondylolisthesis

Identifiers

PMID33372234
PMCPMC8994725
OpenAlexW3114805592

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Registered trials

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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.