Evidence map›Paper›PMID 26984181›Full record

ArticleBMC musculoskeletal disorders2016

Does hemipelvis structure and position influence acetabulum orientation?

Bartosz Musielak, Marek Jóźwiak, Michał Rychlik, Brian Po-Jung Chen, Maciej Idzior, Andrzej Grzegorzewski

Abstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Bartosz MusielakDepartment of Paediatric Orthopaedics and Traumatology, Poznan University of Medical Sciences, Fredry 10, Poznan, 61-701, Poland. ortopediadziecieca@gmail.com.
Marek JóźwiakDepartment of Paediatric Orthopaedics and Traumatology, Poznan University of Medical Sciences, Fredry 10, Poznan, 61-701, Poland.
Michał RychlikDivision of Virtual Engineering, Poznan University of Technology, Piotrowo 3, Poznan, 60-965, Poland.
Brian Po-Jung ChenDepartment of Paediatric Orthopaedics and Traumatology, Poznan University of Medical Sciences, Fredry 10, Poznan, 61-701, Poland.
Maciej IdziorDepartment of Paediatric Orthopaedics and Traumatology, Poznan University of Medical Sciences, Fredry 10, Poznan, 61-701, Poland.
Andrzej GrzegorzewskiDepartment of Orthopaedics and Paediatric Orthopaedics, Medical University of Lodz, Kościuszki 4, Łódź, Poland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough acetabulum orientation is well established anatomically and radiographically, its relation to the innominate bone has rarely been addressed. If explored, it could open the discussion on patomechanisms of such complex disorders as femoroacetabular impingement (FAI). We therefore evaluated the influence of pelvic bone position and structure on acetabular spatial orientation. We describe this relation and its clinical implications.

methodsThis retrospective study was based on computed tomography scanning of three-dimensional models of 31 consecutive male pelvises (62 acetabulums). All measurements were based on CT spatial reconstruction with the use of highly specialized software (Rhinoceros). Relations between acetabular orientation (inclination, tilt, anteversion angles) and pelvic structure were evaluated. The following parameters were evaluated to assess the pelvic structure: iliac opening angle, iliac tilt angle, interspinous distance (ISD), intertuberous distance (ITD), height of the pelvis (HP), and the ISD/ITD/HP ratio. The linear and nonlinear dependence of the acetabular angles and hemipelvic measurements were examined with Pearson's product - moment correlation and Spearman's rank correlation coefficient. Correlations different from 0 with p < 0.05 were considered statistically significant.

resultsComparison of the axis position with pelvis structure with orientation in the horizontal plane revealed a significant positive correlation between the acetabular anteversion angle and the iliac opening angle (p = 0.041 and 0.008, respectively). In the frontal plane, there was a positive correlation between the acetabular inclination angle and the iliac tilt angle (p = 0.025 and 0.014, respectively) and the acetabular inclination angle and the ISD/ITD/HP ratio (both p = 0.048).

conclusionsThere is a significant correlation of the hemipelvic structure and acetabular orientation under anatomic conditions, especially in the frontal and horizontal planes. In the anteroposterior view, the more tilted-down innominate bone causes a more caudally oriented acetabulum axis, whereas in the horizontal view this relation is reversed. This study may serve as a basis for the discussion on the role of the pelvis in common disorders of the hip.

Indexed as

Multidetector Computed TomographyAcetabulumAnatomic LandmarksHumansImaging, Three-DimensionalMaleModels, AnatomicPelvic BonesRadiographic Image Interpretation, Computer-AssistedRetrospective StudiesSoftwareComputed tomographyHip jointPelvic boneSacral base planeSpatial orientation

Identifiers

PMID26984181
PMCPMC4794903

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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.