Evidence map›Paper›PMID 35302592›Full record

ArticleRheumatology (Oxford, England)2022

Associations between syndesmophytes and facet joint ankylosis in radiographic axial spondyloarthritis patients on low-dose CT over 2 years.

Rosalinde Stal, Alexandre Sepriano, Floris Alexander van Gaalen, Xenofon Baraliakos, Rosaline van den Berg, Monique Reijnierse, Juergen Braun, Robert B M Landewé, Désirée van der Heijde

Open access · hybridAbstract read
In one paragraph

Article in Rheumatology (Oxford, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.7field-weighted citation impact, top 9% 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, 18 citations in OpenAlex.

  1. Article
  2. Spondyloarthritis in Latin America: a difficult-to-diagnose challenge.Therapeutic advances in musculoskeletal disease · 2026
    Review
  3. Article
  4. Assessment of T2-weighted MRI-derived synthetic CT for the detection of suspected lumbar facet arthritis: a comparative analysis with conventional CT.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 · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
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 3 countries.

Rosalinde StalDepartment of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.ORCID 0000-0002-6706-3933
Alexandre SeprianoDepartment of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.ORCID 0000-0003-1954-0229
Floris Alexander van GaalenDepartment of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.
Xenofon BaraliakosDepartment of Rheumatology, Ruhr-University Bochum, Rheumazentrum Ruhrgebiet, Herne, Germany.ORCID 0000-0002-9475-9362
Rosaline van den BergDepartment of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.
Monique ReijnierseDepartment of Radiology, Leiden University Medical Center, Leiden, The Netherlands.
Juergen BraunDepartment of Rheumatology, Ruhr-University Bochum, Rheumazentrum Ruhrgebiet, Herne, Germany.ORCID 0000-0002-9156-5095
Robert B M LandewéDepartment of Rheumatology, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands.
Désirée van der HeijdeDepartment of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.ORCID 0000-0002-5781-158X
Leiden University Medical Center · NLRheumazentrum Ruhrgebiet · DEZuyderland Medisch Centrum · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesIn radiographic axial spondyloarthritis (r-axSpA), spinal damage manifests as syndesmophytes and facet joint ankylosis (FJA). We evaluated whether the presence of one lesion increased the risk of the other lesion.

methodsPatients with r-axSpA underwent low-dose CT (ldCT) and MRI of the whole spine at baseline and 2 years. On ldCT, vertebrae were scored for presence and size of syndesmophytes; facet joints were assessed for ankylosis. MR images were assessed for inflammation. Two hypotheses were tested: (i) presence of FJA is associated with new syndesmophyte(s) on the same vertebral unit (VU) 2 years later, and (ii) presence of bridging syndesmophyte(s) is associated with new FJA on the same VU 2 years later. Two generalized estimating equations models were tested per hypothesis using increase of FJA/syndesmophytes (model A) or presence of FJA/syndesmophytes (model B) as outcome, adjusted for inflammation at baseline. Secondary analyses tested the hypotheses with outcomes on adjacent VUs and dose-response effects.

resultsFifty-one patients were included (mean age 49, 84% male, 82% HLA-B27+). Baseline bridging syndesmophytes occurred more often (range: 10-60% per VU) than FJA (range: 8-36%). Odds ratios (ORs) (95% CI) for presence of bridging syndesmophytes on development of FJA were 3.55 (2.03, 6.21) for model A and 3.30 (2.14, 5.09) for model B. ORs for presence of baseline FJA on new syndesmophytes were 1.87 (1.20, 2.92) for model A and 1.69 (0.88, 3.22) for model B. Secondary analyses yielded positive ORs for both hypotheses.

conclusionsBone formation in vertebrae and in facet joints influence each other's occurrence, with the effect of syndesmophytes being larger than that of FJA.

Indexed as

Axial SpondyloarthritisSpondylarthropathiesSpondylitis, AnkylosingZygapophyseal JointElectrolytesFemaleHumansInflammationMaleMiddle AgedSpineTomography, X-Ray ComputedElectrolytesORALITankylosisfacet jointslow dose CTradiographic axial spondyloarthritissyndesmophytes

Identifiers

PMID35302592
PMCPMC9707102
OpenAlexW4220679900

What OpenQuestion holds

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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.