Evidence map›Paper›PMID 35357529›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2022

Magnetic resonance imaging overestimates patellar height compared with radiographs.

Juan Pablo Martinez-Cano, Riccardo Gomes Gobbi, Pedro Nogueira Giglio, Elizabeth Arendt, Giovanna Babikian Costa, Betina B Hinckel

Abstract read
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In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.0field-weighted citation impact, top 29% 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

5 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
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  4. Preoperative ultrasound can accurately predict the diameter of double-stranded peroneus longus tendon autografts.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
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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 at 5 institutions in 3 countries.

Juan Pablo Martinez-CanoDepartamento de Ortopedia, Fundación Valle del Lili, Cra 98 No. 18-49, 760032, Cali, Colombia. juan.martinez.ca@fvl.org.co.ORCID http://orcid.org/0000-0002-6228-0621
Riccardo Gomes GobbiInstituto de Ortopedia e Traumatologia, Faculdade de Medicina, Hospital das Clinicas, Universidade de São Paulo, São Paulo, Brazil.
Pedro Nogueira GiglioInstituto de Ortopedia e Traumatologia, Faculdade de Medicina, Hospital das Clinicas, Universidade de São Paulo, São Paulo, Brazil.
Elizabeth ArendtDepartment of Orthopaedic Surgery, Medical School, University of Minnesota, Minneapolis, USA.
Giovanna Babikian CostaFaculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil.
Betina B HinckelDepartment of Orthopaedic Surgery, William Beaumont Hospital, Royal Oak, MI, USA.
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo · BRBeaumont Hospital, Royal Oak · USFundación Valle del Lili · COUniversidade Brasil · BRUniversity of Minnesota Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the inter-observer and inter-method reliability for patellar height measurements between conventional radiographs (CR) and magnetic resonance imaging (MRI) using one or two slices.

methodsThis was a reliability study, with 60 patients divided in two groups: 30 patients with patellar instability (patella group) and 30 patients with anterior cruciate ligament or meniscus injury (control group). CR and MRI were evaluated by two independent observers. Insall-Salvati index (IS) and Caton-Deschamps index (CD) were measured using three different methods: CR, one-slice MRI or two-slice MRI. Intra-class correlation coefficients (ICC) were calculated for inter-observer reliability and inter-method reliability. Bland-Altman agreement was also calculated.

resultsThe inter-observer reliability was very good for the IS with ICCs of 0.93, 0.84 and 0.82, for the CR, one-slice MRI and two-slice MRI, respectively. Similarly, for the CD the ICCs were good, 0.76, 0.80 and 0.75 for the CR, one-slice MRI and two-slice MRI, respectively. No differences were found between the patella and the control group. The inter-method analysis results were: ICCs for IS (0.83, 0.86, 0.93) and CD (0.72, 0.82, 0.83), for the comparisons of CR/one-slice MR, CR/two-slice MRI and one-slice MRI/two-slice MRI, respectively. The Bland-Altman mean differences showed an 8% and a 7% increase on IS values with one-slice MRI and two-slice MRI compared to CR results, while the increase was of 9% and 1% in CD for the respective comparisons with CR.

conclusionMRI can overestimate patellar height compared to CR, as much as an 8% increase in Insall-Salvati values when using one- or two-slice MRI measurements, and up to a 9% increase in Caton-Deschamps value when using the one-slice MRI method. It is recommended to use the CR as the preferred method when measuring patellar height. LEVEL OF EVIDENCE: III.

Indexed as

Joint InstabilityPatellofemoral JointHumansMagnetic Resonance ImagingPatellaReproducibility of ResultsMagnetic resonance imagingPatellar dislocationPatellar heightPatellofemoral jointX-rays

Identifiers

PMID35357529
OpenAlexW4220865912

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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.