Evidence map›Paper›PMID 34262097›Full record

ArticleScientific reports2021

A proposal for a new morphological classification of the popliteus muscle tendon with potential clinical and biomechanical significance.

Łukasz Olewnik, Robert F LaPrade, Friedrich Paulsen, Bartosz Gonera, Konrad Kurtys, Michał Podgórski, Paloma Aragonés, J Ramón Sanudo, Michał Polguj

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

12 citing papers in PubMed, 22 citations in OpenAlex.

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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

9 authors at 6 institutions in 5 countries.

Łukasz OlewnikDepartment of Anatomical Dissection and Donation, Medical University of Lodz, Lodz, Poland. lukasz.olewnik@umed.lodz.pl.
Robert F LaPradeTwin Cities Orthopedics, Edina, MN, USA.
Friedrich PaulsenInstitute of Functional and Clinical Anatomy, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany.
Bartosz GoneraDepartment of Anatomical Dissection and Donation, Medical University of Lodz, Lodz, Poland.
Konrad KurtysDepartment of Anatomical Dissection and Donation, Medical University of Lodz, Lodz, Poland.
Michał PodgórskiDepartment of Imaging Diagnostic, Polish Mother's Memorial Hospital Research Institute, Lodz, Poland.
Paloma AragonésDepartment of Orthopedics Surgery. Hospital Santa Cristina, Madrid, Spain.
J Ramón SanudoDepartment of Human Anatomy and Embryology, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.
Michał PolgujDepartment of Normal and Clinical Anatomy, Chair of Anatomy and Histology, Medical University of Lodz, Lodz, Poland.
Medical University of Lodz · PLFriedrich-Alexander-Universität Erlangen-Nürnberg · DEHospital Universitario Santa Cristina · ESPolish Mother’s Memorial Hospital Research Institute · PLTwin Cities Orthopedics · USUniversidad Complutense de Madrid · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this study was to characterize the morphological variations in the proximal attachments and create an accurate classification of the PPM for use in planning surgical procedures in this area, for evaluating radiological imaging and rehabilitation. One hundred and thirty-four lower limbs of body donors (52 woman and 82 man) fixed in 10% formalin solution were examined. The popliteus muscle was present in all 134 limbs. Four main types were identified with subtypes. The most common type was Type I (34.3%), characterized by a single tendon in the popliteus sulcus. Type II (30.6%) characterized by a main tendon in the popliteus sulcus and accessory bands. This type was divided into five subtypes (A-E) based on presence of specific accessory bands. Type III (15.3%) was characterized by two tendons in the popliteal sulcus. Type IV (19.4%) was characterized by two tendons in the popliteus sulcus and additional bands. This type was also divided into five subtypes (A-E) based on presence of specific accessory bands. The popliteofibular ligament was present in 90.3% of cases. A new classification based on a proximal attachment is proposed. The popliteus tendon is characterized by a very high morphological variability, which can affect posterolateral knee stability and the natural rotation of the tibia. Such a classification system may be useful for clinicians performing medical procedures within the knee joint, including orthopedic surgeons.

Indexed as

Muscle, SkeletalTendonsAdultAgedAged, 80 and overBiomechanical PhenomenaCadaverFemaleHumansKnee JointMaleMiddle Aged

Identifiers

PMID34262097
PMCPMC8280136
OpenAlexW3182976160

What OpenQuestion holds

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LicenceCC BY
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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.