Evidence map›Paper›PMID 37558820›Full record

ArticleSpine deformity2023

The three-dimensional coupling mechanism in scoliosis and its consequences for correction.

Lorenzo Costa, Tom P C Schlosser, Peter Seevinck, Moyo C Kruyt, René M Castelein

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Spine deformity, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Pathogenic mechanisms of adult degenerative scoliosis.Frontiers in cell and developmental biology · 2026
    Review
  3. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Lorenzo CostaDepartment of Orthopaedic Surgery, University Medical Centre Utrecht, Postbus 85500, G 05.228, 3508 GA, Utrecht, The Netherlands. l.costa-2@umcutrecht.nl.ORCID http://orcid.org/0000-0001-9439-5186
Tom P C SchlosserDepartment of Orthopaedic Surgery, University Medical Centre Utrecht, Postbus 85500, G 05.228, 3508 GA, Utrecht, The Netherlands.
Peter SeevinckDepartment of Imaging, University Medical Centre Utrecht, Utrecht, The Netherlands.
Moyo C KruytDepartment of Orthopaedic Surgery, University Medical Centre Utrecht, Postbus 85500, G 05.228, 3508 GA, Utrecht, The Netherlands.
René M CasteleinDepartment of Orthopaedic Surgery, University Medical Centre Utrecht, Postbus 85500, G 05.228, 3508 GA, Utrecht, The Netherlands. R.M.Castelein@umcutrecht.nl.
University Medical Center Utrecht · NL

Funding

H2020 Marie Skłodowska-Curie Actions 801540
6 · The paper itself

Abstract

introductionIn idiopathic scoliosis, the anterior spinal column has rotated away from the midline and has become longer through unloading and expansion of the intervertebral discs. Theoretically, extension of the spine in the sagittal plane should provide room for this longer anterior spinal column, allowing it to swing back towards the midline in the coronal and axial plane, thus reducing both the Cobb angle and the apical vertebral rotation.

methodsIn this prospective experimental study, ten patients with primary thoracic adolescent idiopathic scoliosis (AIS) underwent MRI (BoneMRI and cVISTA sequences) in supine as well as in an extended position by placing a broad bolster, supporting both hemi-thoraces, under the scoliotic apex. Differences in T4-T12 kyphosis angle, coronal Cobb angle, vertebral rotation, as well as shape of the intervertebral disc and shape and position of the nucleus pulposus, were analysed and compared between the two positions.

resultsExtension reduced T4-T12 thoracic kyphosis by 10° (p < 0.001), the coronal Cobb angle decreased by 9° (p < 0.001) and vertebral rotation by 4° (p = 0.036). The coronal wedge shape of the disc significantly normalized and the wedged and lateralized nucleus pulposus partially reduced to a more symmetrical position.

conclusionSimple extension of the scoliotic spine leads to a reduction of the deformity in the coronal and axial plane. The shape of the disc normalizes and the eccentric nucleus pulposus partially moves back to the midline.

Indexed as

ScoliosisThoracic VertebraeAdolescentChildFemaleHumansIntervertebral DiscKyphosisMagnetic Resonance ImagingMaleProspective StudiesRotationAdolescent idiopathic scoliosisCoupling mechanismExtensionScoliosis

Identifiers

PMID37558820
PMCPMC10587017
OpenAlexW4385708429

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.