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

Purpose The 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. Methods The NORDSTEN spinal stenosis trial...

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Bibliographic Details
Published in:European spine journal 2022-06, Vol.31 (6), p.1391-1398
Main Authors: Aaen, Jørn, Austevoll, Ivar Magne, Hellum, Christian, Storheim, Kjersti, Myklebust, Tor Åge, Banitalebi, Hasan, Anvar, Masoud, Brox, Jens Ivar, Weber, Clemens, Solberg, Tore, Grundnes, Oliver, Brisby, Helena, Indrekvam, Kari, Hermansen, Erland
Format: Article
Language:English
Subjects:
association
Basale medisinske, odontologiske og veterinærmedisinske fag: 710
Basic medical, dental and veterinary science disciplines: 710
Cardiovascular diseases
cauda-equina
cross-sectional area
Decompression
Degeneration
diagnosis
disability
DSCA
dural sac
Gender
Lumbar spinal stenosis
Magnetic resonance imaging
Medical disciplines: 700
Medicine
Medicine & Public Health
Medisinske Fag: 700
NCT
NCT02007083
Neurosciences
Neurosciences & Neurology
Neurosurgery
Neurovetenskaper
Original Article
Orthopedics
Ortopedi
Pain
Patients
Pfirrmann
Schizas
severity
Spinal stenosis
Surgery
Surgical Orthopedics
Tropism
VDP
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Summary:Purpose The 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. Methods The 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. Results The percentage of patients with severe scores was as follows: Schizas (C + D) 71.3%, cross-sectional area (
ISSN:0940-6719
1432-0932
1432-0932
DOI:10.1007/s00586-021-07051-4