Evidence map›Paper›PMID 35711118›Full record

ArticleOrthopaedic surgery2022

Long-term Radiological and Clinical Outcome after Lumbar Spinal Fusion Surgery in Patients with Degenerative Spondylolisthesis: A Prospective 6-Year Follow-up Study.

Jan Bredow, Carolin Meyer, Stavros Oikonomidis, Constantin Kernich, Nikolaus Kernich, Christoph P Hofstetter, Vincent J Heck, Peer Eysel, Tobias Prasse

Open access · goldAbstract read
In one paragraph

Article in Orthopaedic surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Comparative analysis of the clinical efficacy between AUSS-TLIF combined with tianJi ROBOT-assisted PPSF and conventional TLIF in the treatment of Single-Stage lumbar spondylolisthesis.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 · 2026
    Article
  3. Article
  4. 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
  5. Article
  6. Does facet tropism influence the clinical outcomes of posterior lumbar interbody fusion for degenerative lumbar spondylolisthesis?European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
    Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
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 3 institutions in 2 countries.

Jan BredowDepartment of Orthopedics and Trauma Surgery, Krankenhaus Porz am Rhein, University of Cologne, Cologne, Germany.
Carolin MeyerCenter for Spinal Surgery, Helios Klinikum Bonn/Rhein-Sieg, Bonn, Germany.
Stavros OikonomidisUniversity of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Orthopedics and Trauma Surgery, Cologne, Germany.
Constantin KernichUniversity of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Orthopedics and Trauma Surgery, Cologne, Germany.
Nikolaus KernichUniversity of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Orthopedics and Trauma Surgery, Cologne, Germany.
Christoph P HofstetterUniversity of Washington, Department of Neurological Surgery, Seattle, Washington, USA.
Vincent J HeckUniversity of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Orthopedics and Trauma Surgery, Cologne, Germany.
Peer EyselUniversity of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Orthopedics and Trauma Surgery, Cologne, Germany.
Tobias PrasseUniversity of Cologne, Faculty of Medicine and University Hospital Cologne, Department of Orthopedics and Trauma Surgery, Cologne, Germany.ORCID https://orcid.org/0000-0002-3767-5461
University of Cologne · DEHelios Hospital Siegburg · DEUniversity of Washington · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo assess which radiological alignment parameters are associated with a satisfactory long-term clinical outcome after performing lumbar spinal fusion for treating degenerative spondylolisthesis.

methodsThis single-center prospective study assessed the relation between radiological alignment parameters measured on standing lateral lumbar spine radiographs and the patient-reported outcome using four different questionnaires (COMI, EQ-5D, ODI and VAS) as primary outcome measures (level of evidence: II). The following spinopelvic alignment parameters were used: gliding angle, sacral inclination, anterior displacement, sagittal rotation, lumbar lordosis, sacral slope, pelvic tilt and pelvic incidence. Furthermore, the length of stay and perioperative complications were documented. Only cases from 2013 to 2015 of low-grade degenerative lumbar spondylolisthesis (Meyerding grades I and II) were considered. The patients underwent open posterior lumbar fusion surgery by pedicle screw instrumentation and cage insertion. The operative technique was either a posterior lumbar interbody fusion (PLIF) or a transforaminal lumbar interbody fusion (TLIF) performed by three different senior orthopedic surgeons. Exclusion criteria were spine fractures, minimally invasive techniques, underlying malignant diseases or acute infections, previous or multisegmental spine surgery as well as preoperative neurologic impairment. Of 89 initially contacted patients, 17 patients were included for data analysis (11 males, six females).

resultsThe data of 17 patients after mono- or bisegmental lumbar fusion surgery to treat low-grade lumbar spondylolisthesis and with a follow-up time of least 72 months were analyzed. The mean age was 66.7 ± 11.3 years. In terms of complications two dural tears and one intraoperative bleeding occurred. The average body mass index (BMI) was 27.6 ± 4.4 kg/m

conclusionsThe surgical modification of the pelvic tilt and the sagittal rotation are the two radiological alignment parameters that can most accurately predict the long-term clinical outcome after lumbar interbody fusion surgery.

Indexed as

Spinal FusionSpondylolisthesisAgedFemaleFollow-Up StudiesHumansLumbar VertebraeMaleMiddle AgedProspective StudiesRetrospective StudiesTreatment OutcomeClinical outcomeDegenerative spondylolisthesisPosterior lumbar interbody fusion (PLIF)Radiological outcomeTransforaminal lumbar interbody fusion (TLIF)

Identifiers

PMID35711118
PMCPMC9363728
OpenAlexW4283033477

What OpenQuestion holds

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LicenceCC BY
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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.