Evidence map›Paper›PMID 18711658›Full record

ArticleSao Paulo medical journal = Revista paulista de medicina2008

Are distal radius fracture classifications reproducible? Intra and interobserver agreement.

João Carlos Belloti, Marcel Jun Sugawara Tamaoki, Carlos Eduardo da Silveira Franciozi, João Baptista Gomes dos Santos, Daniel Balbachevsky, Eduardo Chap Chap, Walter Manna Albertoni, Flávio Faloppa

Abstract readValidation Study
In one paragraph

Article in Sao Paulo medical journal = Revista paulista de medicina, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing 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

34 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Multimodality Imaging in Wrist Fractures and Dislocations.The Indian journal of radiology & imaging · 2025
    Review
  5. Article
  6. Article
  7. Evaluation of a 3D-printed hands-on radius fracture model during teaching courses.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Observational
  13. Article
  14. Bone Microarchitecture and Distal Radius Fracture Pattern Complexity.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2019
    Article
  15. Review
  16. Article
  17. Classification and treatment of distal radius fractures: a survey among orthopaedic trauma surgeons and residents.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2017
    Article
  18. Article
  19. Article
  20. Review
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.

João Carlos BellotiDepartment of Orthopedics and Traumatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil. jbelloti@terra.com.br
Marcel Jun Sugawara Tamaoki
Carlos Eduardo da Silveira Franciozi
João Baptista Gomes dos Santos
Daniel Balbachevsky
Eduardo Chap Chap
Walter Manna Albertoni
Flávio Faloppa

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

CONTEXT AND

objectiveVarious classification systems have been proposed for fractures of the distal radius, but the reliability of these classifications is seldom addressed. For a fracture classification to be useful, it must provide prognostic significance, interobserver reliability and intraobserver reproducibility. The aim here was to evaluate the intraobserver and interobserver agreement of distal radius fracture classifications. DESIGN AND

settingThis was a validation study on interobserver and intraobserver reliability. It was developed in the Department of Orthopedics and Traumatology, Universidade Federal de São Paulo - Escola Paulista de Medicina.

methodX-rays from 98 cases of displaced distal radius fracture were evaluated by five observers: one third-year orthopedic resident (R3), one sixth-year undergraduate medical student (UG6), one radiologist physician (XRP), one orthopedic trauma specialist (OT) and one orthopedic hand surgery specialist (OHS). The radiographs were classified on three different occasions (times T1, T2 and T3) using the Universal (Cooney), Arbeitsgemeinschaft für Osteosynthesefragen/Association for the Study of Internal Fixation (AO/ASIF), Frykman and Fernández classifications. The kappa coefficient (kappa) was applied to assess the degree of agreement.

resultsAmong the three occasions, the highest mean intraobserver k was observed in the Universal classification (0.61), followed by Fernández (0.59), Frykman (0.55) and AO/ASIF (0.49). The interobserver agreement was unsatisfactory in all classifications. The Fernández classification showed the best agreement (0.44) and the worst was the Frykman classification (0.26).

conclusionThe low agreement levels observed in this study suggest that there is still no classification method with high reproducibility.

Indexed as

AdultColles' FractureHumansObserver VariationPrognosisRadiographyRadius FracturesReproducibility of ResultsRetrospective StudiesSensitivity and Specificity

Identifiers

PMID18711658
PMCPMC11026013

What OpenQuestion holds

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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.