Evidence map›Paper›PMID 27056599›Full record

ArticleSkeletal radiology2016

Atraumatic tears of the ligamentum teres are more frequent in professional ballet dancers than a sporting population.

Susan Mayes, April-Rose Ferris, Peter Smith, Andrew Garnham, Jill Cook

Abstract read
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In one paragraph

Article in Skeletal radiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
5.0field-weighted citation impact, top 5% 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, 3 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Understanding hip pathology in ballet dancers.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Fossa-Foveolar Mismatch Is Highest in Dysplastic Hips and During External Rotation.Arthroscopy, sports medicine, and rehabilitation · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Indications and Outcomes After Ligamentum Teres Reconstruction: A Systematic Review.Arthroscopy, sports medicine, and rehabilitation · 2021
    Review
  9. Article
  10. CLINICAL RELEVANCE of the LIGAMENTUM TERES: A LITERATURE REVIEW.International journal of sports physical therapy · 2019
    Article
  11. 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

5 authors at 3 institutions in 1 country.

Susan MayesSchool of Allied Health, La Trobe University, Bundoora, Victoria, 3086, Australia. suem@australianballet.com.au.
April-Rose FerrisDepartment of Physiotherapy, Monash University, Frankston, Victoria, Australia.
Peter SmithMIA East Melbourne Radiology, East Melbourne, Victoria, Australia.
Andrew GarnhamSchool of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia.
Jill CookSchool of Allied Health, La Trobe University, Bundoora, Victoria, 3086, Australia.
La Trobe University · AUDeakin University · AUMonash University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo compare the frequency of atraumatic ligamentum teres (LT) tear in professional ballet dancers with that of athletes, and to determine the relationship with clinical and imaging findings.

methodsForty-nine male and female professional ballet dancers (98 hips) and 49 age and sex-matched non-dancing athletes (98 hips) completed questionnaires on hip symptoms and physical activity levels, underwent hip rotation range of movement (ROM) and hypermobility testing, and 3.0-Tesla magnetic resonance imaging (3 T MRI) on both hips to detect LT tears, acetabular labral tears, and articular cartilage defects, and to measure the lateral centre edge angles (LCE).

resultsA higher frequency of LT tear was found in dancers (55 %) compared with athletes (22 %, P = 0.001). The frequency and severity of LT tears in dancers increased with older age (P = 0.004, P = 0.006, respectively). The Hip and Groin Outcome Score (HAGOS) pain scores or hip rotation ROM did not differ significantly among participants with normal, partial, or complete tears of LT (P > 0.01 for all). Neither the frequency of generalised joint hypermobility (P = 0.09) nor the LCE angles (P = 0.32, P = 0.16, left and right hips respectively) differed between those with and those without LT tear. In most hips, LT tear co-existed with either a labral tear or a cartilage defect, or both.

conclusionThe higher frequency of atraumatic LT tears in professional ballet dancers suggests that the LT might be abnormally loaded in ballet, and caution is required when evaluating MRI, as LT tears may be asymptomatic. A longitudinal study of this cohort is required to determine if LT tear predisposes the hip joint to osteoarthritis.

Indexed as

AdolescentAdultAthletic InjuriesCartilage, ArticularDancingFemaleHip JointHumansLongitudinal StudiesMaleMiddle AgedRound LigamentsSportsYoung AdultBalletHip jointHypermobilityLateral centre edge angleLigamentum teresMagnetic resonance imaging

Identifiers

PMID27056599
OpenAlexW2319409681

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.