Evidence map›Paper›PMID 10913052›Full record

ArticleAnnals of the rheumatic diseases2000

Development of a logically devised line drawing atlas for grading of knee osteoarthritis.

Y Nagaosa, M Mateus, B Hassan, P Lanyon, M Doherty

Abstract readComparative Study
In one paragraph

Article in Annals of the rheumatic diseases, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
–field-weighted citation impact
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

38 citing papers in PubMed.

  1. Tantalum is a good bone graft substitute in tibial tubercle advancement.Clinical orthopaedics and related research · 2010
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  9. The effect and mechanism ofJournal of orthopaedic translation · 2021
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  15. The association ofTherapeutics and clinical risk management · 2017
    Article
  16. Angiogenesis in alkaptonuria.Journal of inherited metabolic disease · 2016
    Article
  17. Article
  18. Article
  19. Structural associations of symptomatic knee osteoarthritis.Arthritis & rheumatology (Hoboken, N.J.) · 2014
    Article
  20. 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.

Y NagaosaAcademic Rheumatology, University of Nottingham, Clinical Sciences Building, City Hospital, Nottingham NG5 1PB, UK.
M Mateus
B Hassan
P Lanyon
M Doherty

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo (a) develop an atlas of line drawings for the assessment and grading of narrowing and osteophyte (that is, changes of osteoarthritis) on knee radiographs, and (b) compare the performance of this atlas with that of the standard Osteoarthritis Research Society (OARS) photographic atlas of radiographs.

methodsNormal joint space widths (grade 0) for the medial and lateral tibiofemoral and medial and lateral patellofemoral compartments were obtained from a previous community study. Grades 1-3 narrowing in each compartment was calculated separately for men and women, grade 3 being bone on bone, grades 1 and 2 being two thirds and one third the value of grade 0. Maximum osteophyte size (grade 3) for each of eight sites was determined from 715 bilateral knee x ray films obtained in a knee osteoarthritis (OA) hospital clinic; grades 1-2 were calculated as two thirds and one third reductions in the area of grade 3. Drawings for narrowing and osteophyte were presented separately. 50 sets of bilateral knee x ray radiographs (standing, extended anteroposterior; flexed skyline) showing a spectrum of OA grades were scored by three observers, twice using the OARS atlas and twice using the drawn atlas.

resultsIntraobserver and interobserver reproducibility was similar and generally good with both atlases, though varied according to site. All three observers preferred the line drawing atlas for ease and convenience of use. Higher scores for patellofemoral narrowing and lower scores for osteophyte, especially medial femoral osteophyte, were seen using the line drawing atlas, showing that the two atlases are not equivalent instruments.

conclusionA logically derived line drawing atlas for grading of narrowing and osteophyte at the knee has been produced. The atlas showed comparable reproducibility with the OARS atlas, but was discordant in several aspects of grading. Such a system has several theoretical and practical advantages and should be considered for use in knee OA studies.

Indexed as

Medical IllustrationSeverity of Illness IndexAdultAgedConsumer BehaviorFemaleHumansMaleMiddle AgedOsteoarthritis, KneeRadiographyReference ValuesReproducibility of Results

Identifiers

PMID10913052
PMCPMC1753220

What OpenQuestion holds

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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.