Evidence map›Paper›PMID 34023755›Full record

ArticleJournal of biomechanics2021

Physiological articular contact kinematics and morphological femoral condyle translations of the tibiofemoral joint.

Chaochao Zhou, Zhenming Zhang, Zhitao Rao, Timothy Foster, Hany Bedair, Guoan Li

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of biomechanics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

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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

6 authors.

Chaochao ZhouOrthopaedic Bioengineering Research Center, Newton-Wellesley Hospital, Newton, MA, USA; Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Zhenming ZhangOrthopaedic Bioengineering Research Center, Newton-Wellesley Hospital, Newton, MA, USA; Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China.
Zhitao RaoOrthopaedic Bioengineering Research Center, Newton-Wellesley Hospital, Newton, MA, USA.
Timothy FosterOrthopaedic Bioengineering Research Center, Newton-Wellesley Hospital, Newton, MA, USA; Department of Orthopedic Surgery, Newton-Wellesley Hospital, Newton, MA, USA.
Hany BedairOrthopaedic Bioengineering Research Center, Newton-Wellesley Hospital, Newton, MA, USA; Department of Orthopedic Surgery, Newton-Wellesley Hospital, Newton, MA, USA; Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Guoan LiOrthopaedic Bioengineering Research Center, Newton-Wellesley Hospital, Newton, MA, USA; Department of Orthopedic Surgery, Newton-Wellesley Hospital, Newton, MA, USA. Electronic address: gli1@partners.org.

Funding

In vivo ACL Reconstruction BiomechanicsR01AR055612 · NIAMS · MASSACHUSETTS GENERAL HOSPITAL · PI LI, GUOAN · 2008 to 2012
$1.9M
In Vivo PCL BiomechanicsR01AR052408 · NIAMS · MASSACHUSETTS GENERAL HOSPITAL · PI LI, GUOAN · 2005 to 2007
$1.1M
In-Vivo Ligamentous Tension of the KneeR21AR051078 · NIAMS · MASSACHUSETTS GENERAL HOSPITAL · PI LI, GUOAN · 2006 to 2007
$418k
NIAMS NIH HHS R01 AR052408NIAMS NIH HHS R01 AR055612NIAMS NIH HHS R21 AR051078
6 · The paper itself

Abstract

The changes of tibiofemoral articular cartilage contact locations during knee activities represent a physiological functional characteristic of the knee. However, most studies reported relative motions of the tibia and femur using morphological flexion axes. Few data have been reported on comparisons of morphological femoral condyle motions and physiological tibiofemoral cartilage contact location changes. This study compared the morphological and physiological kinematic measures of 20 knees during an in vivo weightbearing single leg lunge from full extension to 120° of flexion using a combined MRI and dual fluoroscopic imaging system (DFIS) technique. The morphological femoral condyle motion was measured using three flexion axes: trans-epicondylar axis (TEA), geometric center axis (GCA) and iso-height axis (IHA). At low flexion angles, the medial femoral condyle moved anteriorly, opposite to that of the contact points, and was accompanied with a sharp increase in external femoral condyle rotation. At 120° of flexion, the morphological measures of the lateral femoral condyle were more posteriorly positioned than those of the contact locations. The data showed that the morphological measures of femoral condyle translations and axial rotations varied with different flexion axes and did not represent the physiological articular contact kinematics. Biomechanical evaluations of the knee joint motion should include both morphological and physiological kinematics data to accurately demonstrate the functionality of the knee.

Indexed as

FemurKnee JointBiomechanical PhenomenaHumansRange of Motion, ArticularTibiaCartilage contact kinematicsFlexion axesIn vivoKneePosterior femoral translationSinge leg lunge

Identifiers

PMID34023755
PMCPMC8217277

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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.