Evidence map›Paper›PMID 40178686›Full record

ArticleSpine deformity2025

Lumbosacral anatomy is unique in pediatric spondylolysis.

Ryan A Finkel, Nakul Narendran, Daniel Farivar, Paal Nilssen, Melodie F Metzger, David L Skaggs, Kenneth D Illingworth

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Spine deformity, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

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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

1 citing paper in PubMed.

  1. 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

7 authors.

Ryan A FinkelCedars-Sinai Medical Center, Department of Spine Surgery, 8700 Beverly Blvd, Los Angeles, CA, 90048, USA. Ryan.finkel@cshs.org.
Nakul NarendranCedars-Sinai Medical Center, Department of Spine Surgery, 8700 Beverly Blvd, Los Angeles, CA, 90048, USA.
Daniel FarivarCedars-Sinai Medical Center, Department of Spine Surgery, 8700 Beverly Blvd, Los Angeles, CA, 90048, USA.ORCID http://orcid.org/0000-0003-4414-7242
Paal NilssenCedars-Sinai Medical Center, Department of Spine Surgery, 8700 Beverly Blvd, Los Angeles, CA, 90048, USA.
Melodie F MetzgerCedars-Sinai Medical Center, Department of Spine Surgery, 8700 Beverly Blvd, Los Angeles, CA, 90048, USA.
David L SkaggsCedars-Sinai Medical Center, Department of Spine Surgery, 8700 Beverly Blvd, Los Angeles, CA, 90048, USA.
Kenneth D IllingworthCedars-Sinai Medical Center, Department of Spine Surgery, 8700 Beverly Blvd, Los Angeles, CA, 90048, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo determine whether patients with L5 spondylolysis have different lumbosacral anatomy compared to patients without L5 spondylolysis.

methodsComputed tomography (CT) scans of pediatric patients with isolated L5 spondylolysis were identified and matched 1:4 (age, sex, BMI) to patients without spondylolysis. Sagittal parameters assessed included sacral slope angle, sacral table angle, L4-S1 and L5-S1 Cobb angles, the horizontal angle of the L5 pars interarticularis, the distances between the L4 inferior articular process (IAP) and the S1 superior articular process (SAP) and their respective individual distances to the L5 pars. Coronal parameters assessed included the percent subluxation of L4 IAP below the facet joint.

results1084 CT scans were reviewed. 32 patients with isolated L5 spondylolysis were identified and matched to 122 patients without spondylolysis. The horizontal angle of the L5 pars was greater in spondylolysis patients (142.5 ± 10.2 vs. 119.9 ± 5.9, p < 0.05). There was less distance (mm) between L4 IAP and S1 SAP (11.3 ± 3.9 vs. 14.7 ± 2.9, p < 0.05) and less distance (mm) from both L4 IAP (2.6 ± 1.7 vs. 5.4 ± 2.2, p < 0.05) and S1 SAP (0.7 ± 0.4 vs. 1.5 ± 0.7, p < 0.05), respectively, to the L5 pars in the spondylolysis group. Pearson's analyses revealed that a larger horizontal angle of the L5 pars was strongly associated with spondylolysis (0.59).

conclusionPediatric patients with L5 spondylolysis have a significantly more horizontal L5 pars that is closer to both the L4 IAP and S1 SAP.

Indexed as

Lumbar VertebraeLumbosacral RegionSacrumSpondylolysisAdolescentChildFemaleHumansMaleRetrospective StudiesTomography, X-Ray ComputedDeformityLow back painPediatricsSpondylolisthesisSpondylolysis

Identifiers

PMID40178686
PMCPMC12227484

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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.