Evidence map›Paper›PMID 25997726›Full record

ArticleJournal of biomechanics2015

In-vivo hip arthrokinematics during supine clinical exams: Application to the study of femoroacetabular impingement.

Ashley L Kapron, Stephen K Aoki, Christopher L Peters, Andrew E Anderson

Abstract read
In one paragraph

Article in Journal of biomechanics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
  2. Observational
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  7. Less hip range of motion is associated with a greater alpha angle in people with longstanding hip and groin pain.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
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  8. Article
  9. Article
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  11. In Vivo Pelvic and Hip Joint Kinematics in Patients With Cam Femoroacetabular Impingement Syndrome: A Dual Fluoroscopy Study.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2020
    Article
  12. Article
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  19. Quantitative comparison of cortical bone thickness using correspondence-based shape modeling in patients with cam femoroacetabular impingement.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2017
    Article
  20. CORR InsightsClinical orthopaedics and related research · 2017
    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

4 authors.

Ashley L KapronDepartment of Orthopaedics, University of Utah, Salt Lake City, UT 84108, USA; Department of Bioengineering, University of Utah, Salt Lake City, UT 84108, USA.
Stephen K AokiDepartment of Orthopaedics, University of Utah, Salt Lake City, UT 84108, USA.
Christopher L PetersDepartment of Orthopaedics, University of Utah, Salt Lake City, UT 84108, USA.
Andrew E AndersonDepartment of Orthopaedics, University of Utah, Salt Lake City, UT 84108, USA; Department of Bioengineering, University of Utah, Salt Lake City, UT 84108, USA; Department of Physical Therapy, University of Utah, Salt Lake City, UT 84108, USA; Scientific Computing and Imaging Institute, University of Utah, Salt Lake City, UT 84108, USA. Electronic address: Andrew.Anderson@hsc.utah.edu.

Funding

Musculoskeletal and Finite Element Modeling of Femoroacetabular ImpingementR21AR063844 · NIAMS · UNIVERSITY OF UTAH · PI ANDERSON, ANDREW EDWARD · 2013 to 2014
$349k
NIAMS NIH HHS R21 AR063844NIAMS NIH HHS R21AR3466184
6 · The paper itself

Abstract

Visualization of hip articulation relative to the underlying anatomy (i.e., arthrokinematics) is required to understand hip dysfunction in femoroacetabular (FAI) patients. In this exploratory study, we quantified in-vivo arthrokinematics of a small cohort of asymptomatic volunteers and three symptomatic patients with varying FAI deformities during the passive impingement, FABER, and rotational profile exams using dual fluoroscopy and model-based tracking. Joint angles, joint translations, and relative pelvic angles were calculated. Compared to the 95% confidence interval of the asymptomatic cohort, FAI patients appeared to have decreased adduction and internal rotation during the impingement exam and greater flexion and less abduction/external rotation in the FABER exam. During the rotational profile, only the FAI patient with the most severe deformities demonstrated considerable rotation deficits. In all participants, contact between the labrum and femoral head/neck limited motion during the impingement exam, but not the rotational profile. Substantial pelvic motion was measured during the impingement exam and FABER test in all participants. Femoral translation along any given anatomical direction ranged between 0.69 and 4.1mm. These results suggest that hip articulation during clinical exams is complex in asymptomatic hips and hips with FAI, incorporating pelvic motion and femur translation. Range of motion appears to be governed by femur-labrum contact and other soft tissue constraints, suggesting that current computer simulations that rely on direct bone contact to predict impingement may be unrealistic. Additional research is necessary to confirm these preliminary results. Still, dual fluoroscopy data may serve to validate existing software platforms or create new programs that better-represent hip arthrokinematics.

Indexed as

AdultBiomechanical PhenomenaCase-Control StudiesFemaleFemoracetabular ImpingementFemur HeadHipHip JointHumansMaleRadiographyRange of Motion, ArticularSupine PositionYoung AdultClinical examsDual fluoroscopyFemoroacetabular impingementHipKinematics

Identifiers

PMID25997726
PMCPMC4536131

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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.