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This study analyzed oncological-orthopedic research in Acta Ortopédica Brasileira from 1993-2022. While most studies had low levels of evidence (LE), there was a positive evolution in evidence quality over time.

Keywords:
Epidemiologic MethodsEvidence-Based MedicineNeoplasmsOrthopedicsPeriodicals as TopicResearch Design

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Area of Science:

  • Orthopedic Surgery
  • Oncology
  • Medical Research Methodology

Background:

  • Acta Ortopédica Brasileira is a key journal for orthopedic research in Brazil.
  • Oncological-orthopedic studies represent a specific yet important subfield within orthopedic literature.
  • Understanding the evidence base of published research is crucial for clinical practice and future study design.

Purpose of the Study:

  • To identify and classify oncological-orthopedic studies published in Acta Ortopédica Brasileira over 30 years.
  • To assess the level of evidence (LE) and inter-rater agreement in classifying these studies.
  • To analyze the evolution of evidence quality in this field over the study period.

Main Methods:

  • A retrospective analysis of oncological-orthopedic studies published between 1993 and 2022.
  • Classification of studies by type and level of evidence (LE).
  • Statistical analysis including inter-rater agreement (Kappa statistic) and association with publication period.

Main Results:

  • 69 out of 1349 papers (5.1%) were identified as oncological-orthopedic studies.
  • A significant association was found between study type, statistical methods, and LE with the publication period (p < 0.05).
  • High inter-rater agreement (92.8%) was achieved for LE classification.

Conclusions:

  • Oncological-orthopedic studies constitute a small but significant portion of the journal's publications.
  • The majority of studies (80%) were initially of lower levels of evidence (NE IV and V).
  • A positive trend towards higher levels of evidence (LE II, III, and IV) was observed over the three decades, indicating an evolution in research quality.