Sonographic evaluation of spondylolysis: technique description and feasibility study of diagnostic ultrasound for the detection of L5 pars interarticularis fractures.

Christopher L Smoley, John Cho, Whitney Graff, Nicole Zipay

Abstract read

In one paragraph

Article in The Journal of the Canadian Chiropractic Association, 2024. 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

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

1 citing paper in PubMed.

Ultrasound diagnosis of lumbar spondylolysis using facet-lamina landmarks.Journal of medical ultrasonics (2001) · 2026
Article

4 · The record

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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

4 authors.

Christopher L SmoleyNorthwestern Health Sciences University, Bloomington, MN.

John ChoParker University, Dallas, TX.

Whitney GraffParker University, Dallas, TX.

Nicole ZipayParker University, Dallas, TX.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Technique description and verification of L5 pars interarticularis (L5PI) using diagnostic ultrasound (DUS). Methods: Asymptomatic 10-year-old male subject was scanned with diagnostic ultrasound applying a linear array transducer (8-13 MHz) over L5/S1 facets; long-axis slide cephalad to capture both superior (SAP) and inferior articulating process (IAP) of L5. Contiguous hyperechoic cortex with deep acoustic shadowing between the SAP and IAP was assumed to be L5PI. To confirm in vivo technique representing L5PI, two spine models (plastic, human spine) were scanned to verify authors' assumption. Metallic paperclip was placed over L5PI then DUS image captured. Lastly, a subject with known spondylolysis was imaged and sonographic appearance of L5PI compared. Results: The structures localized with the metal paperclip on L5PI models were equivalent to the in vivo DUS image. Spondylolysis demonstrates an abrupt step-off defect at L5PI. Conclusion: We report the first technique description and verification of the L5PI using DUS.

Indexed as

anatomychiropracticexploratoryfeasibilitypars defectpars interarticularispilot studysonographyspondylospondylolytic spondylolisthesisstress fracturestress reactionultrasound

Identifiers

PMID39318843

PMCPMC11418794

What OpenQuestion holds

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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.