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Translation, cross-cultural adaptation, and validation into Brazilian Portuguese of the Functional Rhinoplasty
Maria Eduarda Malosá Jorge1, Ana Caroline Soares Silva1, Araken Quedas1
1Universidade Nove de Julho (UNINOVE), Biophotonics Medicine Postgraduate Program, São Paulo, SP, Brazil.
Objectives:
To translate, culturally adapt into Brazilian Portuguese, and validate the Functional Rhinoplasty Outcome Inventory-17 (FROI-17) questionnaire for quality-of-life assessment in patients undergoing functional rhinoseptoplasty.
Methods:
A validation study was conducted following the Guidelines for the Process of Cross-Cultural Adaptation of Self-Report Measures and the COSMIN checklist. The translated FROI-17 was applied to adult patients undergoing rhinoseptoplasty. The following measurement properties were assessed: internal consistency (Cronbach's α), agreement (Standard Error of Measurement and Minimal Detectable Difference), intra-rater reliability (Intraclass Correlation Coefficient, ICC), and convergent validity (correlation with SF-36 and SCHNOS).
Results:
The Brazilian version of the FROI-17 showed high internal consistency (Cronbach's α = 0.93) and excellent intra-rater reliability (ICC = 0.95). Agreement measures were within acceptable clinical thresholds. Convergent validity was confirmed by moderate to strong correlations with SF-36 and SCHNOS. No statistically significant differences were observed between sexes in total FROI-17 scores (p = 0.220), although women presented greater score variability.
Conclusion:
The Brazilian Portuguese version of the FROI-17 proved to be a valid and reliable instrument for assessing functional and aesthetic outcomes in patients undergoing rhinoseptoplasty. It enables objective, standardized evaluation of surgical results and enhances clinical decision-making in otorhinolaryngology.
Evidence-Based Medicine:
Levels of evidence 3.
