Evidence map›Paper›PMID 34797405›Full record

Trial reportEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2022

Clinical and MRI findings in lumbar spinal stenosis: baseline data from the NORDSTEN study.

Jørn Aaen, Ivar Magne Austevoll, Christian Hellum, Kjersti Storheim, Tor Åge Myklebust, Hasan Banitalebi, Masoud Anvar, Jens Ivar Brox, Clemens Weber, Tore Solberg and 4 more

Registry-linked trialOpen access · hybridAbstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in 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, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02007083 (Comparison of Different Surgical Treatments for Lumbar Spinal Stenosis. A Randomized Controlled Trial Comparing the Clinical and Radiological Results Using "Spinous Process Osteotomy", "Bilateral Laminotomy" and "Unilateral Laminotomy With Crossover"), which is not on this map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.3field-weighted citation impact, top 7% 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.

NCT02007083 naactive not recruitingnot on this map

Comparison of Different Surgical Treatments for Lumbar Spinal Stenosis. A Randomized Controlled Trial Comparing the Clinical and Radiological Results Using "Spinous Process Osteotomy", "Bilateral Laminotomy" and "Unilateral Laminotomy With Crossover"

TypeinterventionalSponsorHaukeland University HospitalRan2013 to 2028Enrolled465ConditionsLumbar Spinal StenosisArmsBilateral laminotomy (BL), Unilateral laminotomy with crossover (UL), Spinous Process Osteotomy (SPO)
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 33 citations in OpenAlex.

  1. Dural Sac Cross-sectional area change from preoperatively and up to 2 years after decompressive surgery for central lumbar spinal stenosis: investigation of operated levels, data from the NORDSTEN study.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 · 2024
    Trial
  2. The association between preoperative MRI findings and clinical improvement in patients included in the NORDSTEN spinal stenosis trial.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 · 2022
    Trial
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  13. How well can the clinician appraise the patient's perception of the severity and impact of their back problem?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 · 2024
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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

14 authors at 5 institutions in 2 countries.

Jørn AaenDepartment of Orthopedic Surgery, Ålesund Hospital, Møre and Romsdal Hospital Trust, Ålesund, Norway. Jorn.Aaen@helse-mr.no.ORCID 0000-0002-4586-8415
Ivar Magne AustevollKysthospitalet in Hagevik, Orthopedic Clinic, Haukeland University Hospital, Bergen, Norway.
Christian HellumDivision of Orthopedic Surgery, Oslo University Hospital Ulleval, Oslo, Norway.
Kjersti StorheimCommunication and Research Unit for Musculoskeletal Health (FORMI), Oslo University Hospital, Oslo, Norway.
Tor Åge MyklebustDepartment of Research and Innovation, Møre and Romsdal Hospital Trust, Ålesund, Norway.
Hasan BanitalebiDepartment of Diagnostic Imaging, Akershus University Hospital, Akershus, Norway.
Masoud AnvarUnilabs Radiology, Oslo, Norway.
Jens Ivar BroxDepartment of Physical Medicine and Rehabilitation, Oslo University Hospital, Oslo, Norway.
Clemens WeberDepartment of Orthopaedics, Stavanger University Hospital, Stavanger, Norway.
Tore SolbergDepartment of Orthopaedics, Stavanger University Hospital, Stavanger, Norway.
Oliver GrundnesDepartment of Orthopaedics, Stavanger University Hospital, Stavanger, Norway.
Helena BrisbyDepartment of Orthopaedics, Stavanger University Hospital, Stavanger, Norway.
Kari IndrekvamKysthospitalet in Hagevik, Orthopedic Clinic, Haukeland University Hospital, Bergen, Norway.
Erland HermansenDepartment of Orthopedic Surgery, Ålesund Hospital, Møre and Romsdal Hospital Trust, Ålesund, Norway.
Stavanger University Hospital · NOOslo University Hospital · NONorwegian University of Science and Technology · NOUniversity Hospital of North Norway · NOUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim was to describe magnetic resonance imaging findings in patients planned for lumbar spinal stenosis surgery. Further, to describe possible associations between MRI findings and patient characteristics with patient reported disability or pain.

methodsThe NORDSTEN spinal stenosis trial included 437 patients planned for surgical decompression of LSS. The following MRI findings were evaluated before surgery: morphological (Schizas) and quantitative (cross-sectional area) grade of stenosis, disk degeneration (Pfirrmann), facet joint tropism and fatty infiltration of the multifidus muscle. Patients were dichotomized into a moderate or severe category for each radiological parameter classification. A multivariable linear regression analysis was performed to investigate the association between MRI findings and preoperative scores for Oswestry Disability Index, Zurich Claudication Questionnaire and Numeric rating scale for back and leg pain. The following patient characteristics were included in the analysis: gender, age, smoking and weight.

resultsThe percentage of patients with severe scores was as follows: Schizas (C + D) 71.3%, cross-sectional area (< 75 mm

conclusionIn this cross-sectional study, the majority of the patients had MRI findings classified as severe LSS changes, but the findings had no clinically relevant association with patient reported disability and pain at baseline. Patient characteristics have a larger impact on disability and pain than radiological findings.

trial registrationwww. CLINICALTRIALS: gov identifier: NCT02007083, registered December 2013.

Indexed as

Spinal StenosisCross-Sectional StudiesDecompression, SurgicalHumansLumbar VertebraeMagnetic Resonance ImagingPainDSCALumbar spinal stenosisPfirrmannSchizasTropism

Identifiers

PMID34797405
OpenAlexW3213223243

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.