Evidence map›Paper›PMID 38715464›Full record

Observational studyClinical anatomy (New York, N.Y.)2025

Morphology of the dysplastic hip and the relationship with sex and acetabular version.

Inger Mechlenburg, Sepp De Raedt, Hakim C Achterberg, Maiken Stilling, Lone Rømer, Kjeld Søballe, Marleen de Bruijne

Abstract readObservational Study
In one paragraph

Observational study in Clinical anatomy (New York, N.Y.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Validation of the Aarhus periacetabular osteotomy database.Archives of orthopaedic and trauma surgery · 2025
    Article
  2. Observational
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.

Inger MechlenburgDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.ORCID https://orcid.org/0000-0001-5432-8691
Sepp De RaedtDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Hakim C AchterbergDepartment of Radiology and Nuclear Medicine, Erasmus MC Rotterdam, Rotterdam, The Netherlands.
Maiken StillingDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Lone RømerDepartment of Radiology, Aarhus University Hospital, Aarhus, Denmark.
Kjeld SøballeDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Marleen de BruijneDepartment of Radiology and Nuclear Medicine, Erasmus MC Rotterdam, Rotterdam, The Netherlands.

Funding

Aarhus UniversitetNetherlands Organization for Scientific Research
6 · The paper itself

Abstract

The dysplastic hip is characterized by incomplete coverage of the femoral head, resulting in increased risk of early osteoarthritis. The morphological variation of the hip joint is diverse and clear differences exist between females and males. The aim of this observational study was therefore to investigate the relationship between the morphology of the hip, sex, and hip dysplasia using a three-dimensional model. Statistical shape models of the combined femur and pelvic bones were created from bilateral hips of 75 patients. Using manual angle measurements and regression analysis, the characteristic shape differences associated with sex and hip dysplasia were determined. The model showed clear differences associated with sex and hip dysplasia. We found that the acetabular anteversion in females was significantly higher (p < 0.0001) than in males while no significant difference in acetabular anteversion was found between normal and dysplastic hips (p = 0.11). The model showed that decreased acetabular anteversion resulted in the appearance of the cross-over sign and the prominent ischial spine sign commonly associated with retroversion. Sex could be predicted with an area under the curve of 0.99 and hip dysplasia could be predicted with an area under the curve of ≥0.73. Our findings suggest that retroversion is a result of decreased anteversion of the acetabulum and is primarily associated with sex. This finding should be taken into account during the reorientation of the acetabulum in the surgical treatment of hip dysplasia.

Indexed as

AcetabulumHip DislocationHip JointAdolescentAdultAgedFemaleHumansImaging, Three-DimensionalMaleMiddle AgedSex FactorsYoung Adulthiphip dysplasiamorphologysexthree‐dimensional model

Identifiers

PMID38715464
PMCPMC12163104

What OpenQuestion holds

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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.