Evidence map›Paper›PMID 33237502›Full record

ArticleSports medicine - open2020

Lumbar spine abnormalities and facet joint angles in asymptomatic elite junior tennis players.

Molly Connolly, Andrew H Rotstein, Justin Roebert, Rafal Grabinski, Frank Malara, Tomas O'Shea, Tim Wood, Melanie Omizzolo, Stephanie Kovalchik, Machar Reid

Open access · goldAbstract read
In one paragraph

Article in Sports medicine - open, 2020. 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
1.0field-weighted citation impact, top 23% 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, 13 citations in OpenAlex.

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  7. Chronic Effects of Asymmetric and Symmetric Sport Load in Varsity Athletes across a Six Month Sport Season.International journal of environmental research and public health · 2023
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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

10 authors at 4 institutions in 1 country.

Molly ConnollyInstitute for Health and Sport, Victoria University, Melbourne, Australia. molly.connolly92@gmail.com.ORCID http://orcid.org/0000-0001-7850-2498
Andrew H RotsteinVictoria House Medical Imaging, 435 Malvern Rd, South Yarra, Melbourne, Australia.
Justin RoebertVictoria House Medical Imaging, 435 Malvern Rd, South Yarra, Melbourne, Australia.
Rafal GrabinskiVictoria House Medical Imaging, 435 Malvern Rd, South Yarra, Melbourne, Australia.
Frank MalaraVictoria House Medical Imaging, 435 Malvern Rd, South Yarra, Melbourne, Australia.
Tomas O'SheaVictoria House Medical Imaging, 435 Malvern Rd, South Yarra, Melbourne, Australia.
Tim WoodGlenferrie Private Hospital, Melbourne, Australia.
Melanie OmizzoloPerformance, Tennis Australia, Melbourne, Australia.
Stephanie KovalchikInstitute for Health and Sport, Victoria University, Melbourne, Australia.
Machar ReidGame Insight Group, Tennis Australia, Melbourne, Australia.
Australian Football League · AUMater Private Hospital · AUSports Medicine Australia · AUVictoria University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLumbar spine abnormalities, in particular stress fractures to the pars interarticularis, are common in elite junior tennis players, though the difference in prevalence between males and females remains unclear. Further, facet joint orientation appears to be a possible option for recognizing which players might go on to present with a pars stress fracture. Given the link between pars stress fractures and low back pain in tennis players, it appears logical to explore the link between facet joint angle and pars abnormalities. Thus, the purpose of this study was to describe the prevalence of lumbar spine abnormalities and explore the relationship between facet joint orientation and pars abnormalities in elite adolescent tennis players. METHODOLOGY: Lumbar spine MRI images of 25 elite junior tennis players were obtained and distributed between five radiologists for analysis. Descriptive comparisons and confidence intervals were used to describe the prevalence of the abnormalities. A generalized linear regression model was conducted to investigate the relationship between lumbar pars abnormalities and lumbar facet joint angles.

resultsSixteen (64%) of 25 players were found to have at least one lumbar spine abnormality. Pars abnormalities affected 36% of players while bone marrow edema was found in 24% of players. Disc herniation, disc degeneration, and facet joint degeneration were diagnosed in 20%, 44%, and 24% of players respectively. Lastly, one player (4%) was diagnosed with spondylolisthesis. Females had significantly larger facet joint angles across L3/4 L5/S1 compared to males (p < 0.01). Further, those who had pars abnormalities had larger facet joint angles compared to those who did not (p < 0.001).

conclusionDisc degeneration, pars abnormalities, including bone marrow edema, and facet joint degeneration were common findings among elite adolescent tennis players. Additionally, this study is the first to discover that pars abnormalities are linked to facet joint angle in elite adolescent tennis players. This finding might assist in identifying tennis players at a greater risk of developing lumbar spine pars abnormalities in the future.

Indexed as

Facet jointInjuryLumbar spineMRITennis

Identifiers

PMID33237502
PMCPMC7688834
OpenAlexW3108054660

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.