Evaluating fluctuating and directional asymmetry in postnatal petrous bone growth: a 3D morphometric study.

Magali Bourgoin, Paul Landais, Gérard Subsol, Guillaume Captier

Abstract read

In one paragraph

Article in Surgical and radiologic anatomy : SRA, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Magali BourgoinLaboratoire d'Informatique, de Robotique et de Microélectronique de Montpellier, Univ Montpellier, Montpellier, France.

Paul LandaisFaculty of Medicine, Univ Montpellier, Montpellier, France.

Gérard SubsolLaboratoire d'Informatique, de Robotique et de Microélectronique de Montpellier, Univ Montpellier, Montpellier, France.

Guillaume CaptierLaboratoire d'Informatique, de Robotique et de Microélectronique de Montpellier, Univ Montpellier, Montpellier, France. g-captier@chu-montpellier.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe objective was to assess fluctuating asymmetry (FA) and directional asymmetry (DA) of the petrous bone (PB) and the petromastoid V (PMV) in children using 3D morphometric data.

methodsCT scans of normal children (0 to 30 months) were included. After segmentation, the geometric characteristics were calculated (volume, three inertial semi-axes (ISA), centroid, distance, angle). The FA and DA were studied according to stages of postural development and sex.

results116 CT scans were studied (70 boys, 46 girls). The two sides of the PB and PMV were symmetric (FA between 1.87% and 3.01%). PB volumes showed FA along the stages of postural development (p = 0.034) and were sex-independent. No FA was found for the 3D shape of the PB, but there was a DA for the 3rd ISA of the right side (p = 0.017). The FA of the PMV was greater in boys. A DA of the PMV (p = 1.17 e−11) (distance from the CS = left > right) was present in boys regardless of the stages of postural development.

conclusionChanges in posture did not influence PB and PMV geometry and symmetry. However, a FA appeared in PB volume. Moreover, we highlighted a right DA for PB and PMV.

Indexed as

Petrous BoneChild, PreschoolFemaleHumansImaging, Three-DimensionalInfantInfant, NewbornMaleReference ValuesTomography, X-Ray Computed3D imagingDirectional asymmetryFluctuating asymmetryInfantPetrous bonePostural development

Identifiers

PMID41555047

DOI10.1007/s00276-025-03716-7

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.