Evidence map›Paper›PMID 33159260›Full record

ArticleJournal of experimental orthopaedics2020

Biomechanical asymmetries persist after ACL reconstruction: results of a 2-year study.

Fatemeh Sharafoddin-Shirazi, Amir Letafatkar, Jennifer Hogg, Vahid Saatchian

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in Journal of experimental orthopaedics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 pooled it
2.0field-weighted citation impact, top 13% of its field
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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Pooled it
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  3. Can a Knee Brace Prevent ACL Reinjury: A Systematic Review.International journal of environmental research and public health · 2021
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  10. [Biomechanics during cutting movement in individuals after anterior cruciate ligament reconstruction].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 2 countries.

Fatemeh Sharafoddin-ShiraziFaculty of Physical Education and Sports Sciences, Imamreza University, Mashhad, Iran.
Amir LetafatkarFaculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran. letafatkaramir@yahoo.com.ORCID http://orcid.org/0000-0002-5612-8340
Jennifer HoggGraduate Athletic Training Program, Health & Human Performance Department, University of Tennessee Chattanooga, Chattanooga, USA.
Vahid SaatchianFaculty of Physical Education and Sports Sciences, Imamreza University, Mashhad, Iran.
Imam Reza International University · IRKharazmi University · IRUniversity of Tennessee at Chattanooga · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study was aimed to examine longitudinal (6, 12, 18, 24 months) asymmetries in double-leg landing kinetics and kinematics of subjects with and without unilateral ACLR.

methodsThree-dimensional kinematic and kinetic parameters of 40 participants (n = 20 post-ACLR, n = 20 healthy) were collected with a motion analysis system and force plate during a drop-landing task, and asymmetry indices were compared between groups.

resultsThe asymmetry index (AI) in the ACLR group compared to the healthy group decreased from six to 24 months for vertical ground reaction force (vGRF) from 100% to 6.5% and for anterior posterior ground reaction force (a-pGRF) from 155.5% to 7%. Also, the AI decreased for peak hip flexion moment from 74.5% to 17.1%, peak knee flexion moment from 79.0% to 5.8% and peak ankle dorsiflexion moment from 59.3% to 5.9%. As a further matter, the AI decreased for peak hip abduction moment from 67.8% to 5.1%, peak knee adduction moment from 55.7% to 14.8% and peak knee valgus angle from 48.7% to 23.5%.

conclusionsResults obtained from this longitudinal study showed that ACLR patients still suffer from limb asymmetries during landing tasks, which appear to normalize by 24-monthspost-surgery. This finding can help us to better understand biomechanics of the limbs after ACLR, and design more efficient post-surgery rehabilitation programs. LEVEL OF EVIDENCE: Level III.

Indexed as

ACLRAsymmetryKinematicKineticLanding

Identifiers

PMID33159260
PMCPMC7647975
OpenAlexW3097253678

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.