Evidence map›Paper›PMID 30653904›Full record

ArticleNeurospine2019

A Radiological Study of the Association of Facet Joint Tropism and Facet Angulation With Degenerative Spondylolisthesis.

Ravi Ranjan Rai, Yash Shah, Siddharth Shah, Nigil Sadanandan Palliyil, Samir Dalvie

Abstract read
In one paragraph

Article in Neurospine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Is facet joint tropism associated with spondylolysis and isthmic spondylolisthesis?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. Aseptic Discitis with Instability after Posterior Spine Surgery.Journal of orthopaedic case reports · 2026
    Article
  4. Biomechanical simulation of long-term performance of a tendon-based spinal stabilization (VPX).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
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  8. Exploration of the correlation between facet joints cross-sectional area asymmetry and cervical disc herniation.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
    Article
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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

5 authors.

Ravi Ranjan RaiDepartment of Orthopaedics, P D Hinduja National Hospital and Medical Research Centre, Mumbai, India.
Yash ShahDepartment of Orthopaedics, P D Hinduja National Hospital and Medical Research Centre, Mumbai, India.
Siddharth ShahDepartment of Orthopaedics, P D Hinduja National Hospital and Medical Research Centre, Mumbai, India.
Nigil Sadanandan PalliyilDepartment of Orthopaedics, P D Hinduja National Hospital and Medical Research Centre, Mumbai, India.
Samir DalvieDepartment of Orthopaedics, P D Hinduja National Hospital and Medical Research Centre, Mumbai, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo study the association of facet joint angulation and joint tropism with degenerative spondylolisthesis (DS) through a comparison with a matched control group.

methodsThis radiographic study was carried out in 2 groups of 45 patients each. Group A contained patients with single-level DS, while group B (control) contained non-DS patients with similar age and degeneration who underwent surgery for disc prolapse or lumbar stenosis. DS was diagnosed based on translation of ≥ 3 mm on standing lateral radiography. Axial magnetic resonance imaging from L3 to S1 was utilized to assess the angulation of facet joints in relation to the coronal plane; a difference of ≥ 8° was considered to indicate tropism.

resultsAmong 45 patients with DS, 15 were males and 30 females. Their mean age was 62.2 years. Facet tropism was identified in 20 of 45 patients at the level of DS, 12 patients at a level proximal to DS, and 15 patients at a level distal to DS. Facet tropism was found in 7 of the 45 patients in group B. At L3-4, facet tropism was observed in 13 patients (28.88%) in group A and 2 (4.44%) in group B. At L4-5, tropism was observed in 19 patients (42.22%) in group A and 5 (11.11%) in group B. At L5-S1, tropism was seen in 17 patients (37.77%) in group A and 2 (4.44%) in group B. Group A showed a significantly higher prevalence of multilevel facet tropism and tropism at levels adjacent to the DS level. A higher average angulation of facet joints was observed in the DS group, but the difference was not statistically significant at all levels.

conclusionThe present study documented a statistically significant relationship between facet tropism and DS. A higher prevalence of facet tropism was also found in DS patients at non-DS levels, which is a novel observation. This finding supports the argument that facet tropism is a pre-existing morphological variation contributing to the development of DS, not a result of secondary remodelling.

Indexed as

Degenerative spondylolisthesisFacet tropismLumbar facet orientation

Identifiers

PMID30653904
PMCPMC6945004

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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.