Evidence map›Paper›PMID 42550390›Full record

ArticleAnnals of biomedical engineering2026

Bilateral Symmetry and Sex Differences in Hip Joint Helical Axes of Motion During Gait.

Edward Godbold, Connor Luck, Camille C Johnson, Ashley Disantis, Craig Mauro, Michael McClincy, William Anderst

Abstract read
PubMed Publisher
In one paragraph

Article in Annals of biomedical engineering, 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

7 authors.

Edward GodboldDepartment of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, 15203, USA.
Connor LuckDepartment of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, 15203, USA.
Camille C JohnsonDepartment of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, 15203, USA.
Ashley DisantisDepartment of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, 15203, USA.
Craig MauroDepartment of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, 15203, USA.
Michael McClincyDepartment of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, 15203, USA.
William AnderstDepartment of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, 15203, USA. anderst@pitt.edu.

Funding

University of Pittsburgh Clinical and Translational Science InstituteUL1TR001857 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2016 to 2025
$129.3M
NCATS NIH HHS UL1TR001857
6 · The paper itself

Abstract

purposeTo quantify helical axis of motion (HAM) orientation, center of rotation (COR), and the bilateral symmetry, sex differences, and differences in HAM COR and dispersion between periods of hip flexion/extension during gait in healthy young adult hips.

methodsSynchronized biplane radiographs of 46 hips were collected at 50 images/sec during treadmill gait. Each subject received a CT scan, which was segmented to create subject-specific pelvis and proximal femur bone models. Bone motion was determined with submillimeter accuracy by matching digitally reconstructed radiographs created from the bone models to the distortion-corrected radiographs using a validated volumetric model-based tracking technique. The femoroacetabular HAM was calculated for every three-degree interval of hip flexion/extension and described by the COR location and the HAM orientation relative to the sagittal, transverse, and coronal planes of the pelvis. Symmetry was measured by absolute side-to-side differences (SSD

resultsThe SSD

conclusionThe hip COR moves throughout gait and is not located at the center of the acetabulum in healthy young adults. The observed SSD

Indexed as

Dynamic biplane radiographyFemoroacetabular kinematicsHelical axis of motionHip joint centerHip stability

Identifiers

PMID42550390

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.