Evidence map›Paper›PMID 34093920›Full record

ArticlePolish journal of radiology2021

Do the quadriceps and hamstring muscles have an effect on patella stability in trochlear dysplasia?

Ahmed Saad, Aamer Iqbal, Uzo Ehiogu, Steven James, Rajesh Botchu

Open access · diamondAbstract read
In one paragraph

Article in Polish journal of radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.2field-weighted citation impact, top 56% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. 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

5 authors at 1 institution in 1 country.

Ahmed SaadDepartment of Orthopedics, Royal Orthopaedic Hospital, Birmingham, UK.
Aamer IqbalDepartment of Musculoskeletal Imaging, Royal Orthopaedic Hospital, Birmingham, UK.
Uzo EhioguDepartment of Physiotherapy, Royal Orthopaedic Hospital, Birmingham, UK.
Steven JamesDepartment of Musculoskeletal Imaging, Royal Orthopaedic Hospital, Birmingham, UK.
Rajesh BotchuDepartment of Musculoskeletal Imaging, Royal Orthopaedic Hospital, Birmingham, UK.
Royal Orthopaedic Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTrochlear dysplasia (TD) is a condition that is characterized by the presence of either a flat or convex trochlear, which impedes the stability of the patellofemoral joint (PFJ). The PFJ function is dependent on many different structures that surround the knee joint. The aim of this study was to analyse all the muscle components around the PFJ and identify whether gross muscle imbalance could contribute to the stability of the patella in TD. MATERIAL AND

methodsThe average cross-sectional area (CSA) and cross-sectional area ratio (CSAR) of each muscle of the thigh region in subtypes of TD was evaluated and compared to normal knee joints. Ninety-eight patients (196 knees in total) were included in the study.

resultsOf the 196 knee joints that were reviewed, 10 cases were found to be normal. In total, 186 cases were positive for TD. The majority consisted of type C. The hamstring muscles showed variable results. The vastus medialis muscle was larger in comparison to the vastus lateralis muscle over all the different TD subtypes; however, no statistical significance was identified. There was a marked statistical significance between the quadriceps and hamstring muscles, especially when comparing this to the normal knees within our cohort.

conclusionsThis study revealed no significant difference in the effect of the thigh muscle CSA on the stability of the PFJ in TD. Further research is required to establish the roles of the different muscles around PFJ in the prevention of TD dislocation.

Indexed as

hamstringslateral patellar dislocationmedial patellofemoral ligamentphysiotherapyquadricepstrochlear dysplasia

Identifiers

PMID34093920
PMCPMC8147712
OpenAlexW3157865648

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.