Evidence map›Paper›PMID 33748306›Full record

ArticleOrthopaedic journal of sports medicine2021

Relationship Between Patellar Morphology and Known Anatomic Risk Factors for Patellofemoral Instability.

Andrew E Jimenez, Benjamin J Levy, Nathan L Grimm, Steven M Andelman, Chris Cheng, Jon P Hedgecock, Andrew Cohen, J Lee Pace

Open access · goldAbstract read
In one paragraph

Article in Orthopaedic journal of sports medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.1field-weighted citation impact, top 26% 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

8 citing papers in PubMed, 20 citations in OpenAlex.

  1. Age-Dependent Susceptibility to Mechanical Unloading-Induced Femoral Morphological Changes and Patellar Instability in a Rat Model.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026
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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

8 authors at 2 institutions in 1 country.

Andrew E JimenezUniversity of Connecticut Health and School of Medicine, Farmington, Connecticut, USA.
Benjamin J LevyUniversity of Connecticut Health and School of Medicine, Farmington, Connecticut, USA.
Nathan L GrimmIdaho Sports Medicine Institute, Boise, Idaho, USA.
Steven M AndelmanSUNY Downstate Health Sciences University, Brooklyn, New York, USA.
Chris ChengCase Western Reserve Hospitals, Cleveland, Ohio, USA.
Jon P HedgecockOrthopedic Health of Kansas City, Kansas City, Missouri, USA.
Andrew CohenElite Sports Medicine at Connecticut Children's Medical Center, Farmington, Connecticut, USA.
J Lee PaceUniversity of Connecticut Health and School of Medicine, Farmington, Connecticut, USA.
Minnesota Orthopedic Sports Medicine Institute · USSUNY Downstate Health Sciences University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatellar instability (PI) is a common problem among pediatric, adolescent, and young adult patients. Recent literature has shown a correlation between pathoanatomy and PI. PURPOSE/HYPOTHESIS: The purpose of this study was to determine if there is any difference in patellar shape in patients with and without PI and if there is any association between the shape of the patella and the shape of the trochlea. Our hypothesis was that there would be no association between the shape of the patella and the likelinhood of having PI and that the shape of the trochlea would not be associated with patellar morphology. STUDY

designCross-sectional study; Level of evidence, 3.

methodsMagnetic resonance imaging (MRI) scans were analyzed for 97 study patients with PI and 100 control patients with anterior cruciate ligament tears. Radiologic measurements of trochlear morphology were collected via MRI; 15 measurements of patellar morphology were then measured using axial MRI scans. Comparisons between the control and PI groups were performed using a 2-tailed

resultsThere were no statistically significant differences between the PI and control groups for the majority of patellar morphology measurements. With regression analysis, there were no statistically significant associations between the majority of patellar morphology measurements and the trochlear dysplasia measurements.

conclusionPatellar morphology is highly variable in knees with and without PI. There was a minimal association between measurements of patellar morphology and trochlear dysplasia.

Indexed as

kneepatellar instabilitypatellar morphologytrochlear dysplasia

Identifiers

PMID33748306
PMCPMC7940750
OpenAlexW3134563233

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.