Evidence map›Paper›PMID 33355708›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2021

Comparison of different strategies on three-dimensional correction of AIS: which plane will suffer?

Tom P Schlösser, Kariman Abelin-Genevois, Jelle Homans, Saba Pasha, Moyo Kruyt, Pierre Roussouly, Suken A Shah, René M Castelein

Open access · hybridAbstract read
PubMed Publisher
In one paragraph

Article 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, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.8field-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

14 citing papers in PubMed, 16 citations in OpenAlex.

  1. Evolution of surgical strategy for superior kyphosis restoration in patients with Lenke 1 & 2 adolescent idiopathic scoliosis.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
  2. Postoperative thoracic kyphosis is associated with clinically significant pain improvement at 1-year follow-up in adolescent idiopathic scoliosis: a multicenter 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 · 2026
    Article
  3. The application of a functional-anatomical model in pulmonary risk assessment for adolescent idiopathic scoliosis.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
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Comparison of four correction techniques for posterior spinal fusion in adolescent idiopathic scoliosis.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
    Article
  14. 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

8 authors at 5 institutions in 3 countries.

Tom P SchlösserDepartment of Orthopaedic Surgery, G05.228, University Medical Center Utrecht, P.O. Box 85500, 35084 GA, Utrecht, The Netherlands. t.p.c.schlosser@umcutrecht.nl.ORCID 0000-0003-1517-5914
Kariman Abelin-GenevoisOrthopaedic Department, Centre medico chirurgical Les Massues, Lyon, France.
Jelle HomansDepartment of Orthopaedic Surgery, G05.228, University Medical Center Utrecht, P.O. Box 85500, 35084 GA, Utrecht, The Netherlands.
Saba PashaDepartment of Orthopaedic Surgery, The Children's Hospital of Philadelphia (CHOP), Philadelphia, PA, USA.
Moyo KruytDepartment of Orthopaedic Surgery, G05.228, University Medical Center Utrecht, P.O. Box 85500, 35084 GA, Utrecht, The Netherlands.
Pierre RoussoulyOrthopaedic Department, Centre medico chirurgical Les Massues, Lyon, France.
Suken A ShahDepartment of Orthopaedic Surgery, Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, USA.
René M CasteleinDepartment of Orthopaedic Surgery, G05.228, University Medical Center Utrecht, P.O. Box 85500, 35084 GA, Utrecht, The Netherlands.
University Medical Center Utrecht · NLCentre Médico Chirurgical de Tronquières · FRAlfred I. duPont Hospital for Children · USChildren's Hospital of Philadelphia · USUtrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThere are distinct differences in strategy amongst experienced surgeons from different 'scoliosis schools' around the world. This study aims to test the hypothesis that, due to the 3-D nature of AIS, different strategies can lead to different coronal, axial and sagittal curve correction.

methodsConsecutive patients who underwent posterior scoliosis surgery for primary thoracic AIS were compared between three major scoliosis centres (n = 193). Patients were treated according to the local surgical expertise: Two centres perform primarily an axial apical derotation manoeuvre (centre 1: high implant density, convex rod first, centre 2: low implant density, concave rod first), whereas centre 3 performs posteromedial apical translation without active derotation. Pre- and postoperative shape of the main thoracic curve was analyzed using coronal curve angle, apical rotation and sagittal alignment parameters (pelvic incidence and tilt, T1-T12, T4-T12 and T10-L2 regional kyphosis angles, C7 slope and the level of the inflection point). In addition, the proximal junctional angle at follow-up was compared.

resultsPre-operative coronal curve magnitudes were similar between the 3 cohorts and improved 75%, 70% and 59%, from pre- to postoperative, respectively (P < 0.001). The strategy of centres 1 and 2 leads to significantly more apical derotation. Despite similar postoperative T4-T12 kyphosis, the strategy in centre 1 led to more thoracolumbar lordosis and in centre 2 to a higher inflection point as compared to centre 3. Proximal junctional angle was higher in centres 1 and 2 (P < 0.001) at final follow-up.

conclusionCurve correction by derotation may lead to thoracolumbar lordosis and therefore higher risk for proximal junctional kyphosis. Focus on sagittal plane by posteromedial translation, however, results in more residual coronal and axial deformity.

Indexed as

KyphosisLordosisScoliosisSpinal FusionHumansRetrospective StudiesThoracic VertebraeTreatment OutcomeAdolescent idiopathic scoliosisDerotationSagittal alignmentTranslation

Identifiers

PMID33355708
OpenAlexW3114711036

What OpenQuestion holds

Textmetadata
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.