The Patient and Observer Scar Assessment Scale: Translation for portuguese language, cultural adaptation, and validation

Abstract

Evaluating scars is fundamental to analyse the outcome of treatments that include surgical intervention. Scales facilitate this type of assessment, but most of these measuring instruments are in different languages. The Patient and Observer Scar Assessment Scale (POSAS) is one of the most robust instruments available in the literature for the evaluation of scars, although there is no validated version in Brazilian Portuguese. The aims of this study were to culturally translate and validate POSAS for the Portuguese language of Brazil and to test its reproducibility, face validity, content, and construct. Following the methodology proposed by Beaton DE, Bombardier C, Guillemin F, Ferraz, MB, Spine 2000, 25, 3186, the questionnaire was translated and adapted to the Brazilian culture. The reproducibility, face, content, and construct validity were then analysed. In all, the scale was applied to 35 patients with postoperative scars (patient version) and 35 hand surgery specialists (version for the observer). The internal consistency was tested by Cronbach's alpha, and construct validation was performed by correlating the translated instrument with the Brazilian Portuguese translation of the Vancouver Scar Scale (VSS). The cultural adaptation of POSAS Escola Paulista de Medicina/Universidade Federal de São Paulo (EPM/UNIFESP) was confirmed. Both subscales showed strong internal consistency (Cronbach's α = 0.77-0.93), demonstrating reliability. The reproducibility was excellent, and the adapted scale demonstrated significant intraand inter-observer reproducibility (r > 0.9) (P < 0.05). The validity of the construct was significant and showed good sensitivity between POSAS EMP/UNIFESP and the VSS. This study confirmed that POSAS EPM/UNIFESP can be used to evaluate patients with surgical scars in the Brazilian population. It has proven to be useful for clinical and research purposes, lending itself to capturing medical opinions and those of the patients themselves.

Tradução e adaptação cultural para o português do Brasil do Children's Physical Activity Questionnaire (C-PAQ)

“…18 The methods of translation and cultural adaptation are widely described and used for the evaluation, follow-up and comparison of different conditions or situations in the clinical practice of orthopedics and sports medicine. 8,11,19 Cultural adaptation is performed through two basic components: translation of the instrument from its original language to another, and its adaptation to the culture and lifestyle of the population to whom it will be applied. 14 In this process, certain situations or questions may be completely or partially changed.…”

“…This methodology enables the use of instruments to perform comparisons between groups who speak different languages and have different cultures, and they are very useful in th clinical practice. [9][10][11][12][13] The main objective of the present study was to translate and validate the C-PAQ to Brazilian Portuguese.…”

“…This methodology enables the use of instruments to perform comparisons between groups who speak different languages and have different cultures, and they are very useful in th clinical practice. 9 10 11 12 13 …”

“…Essa metodologia permite que instrumentos que são bastante úteis na prática clínica sejam utilizados para comparar grupos de diferentes idiomas e culturas. 9 10 11 12 13 …”

Benefícios do retalho osteoplástico pediculado como via de acesso em mastoidectomia para cirurgia de implante coclear

“…Na literatura, somente a escala de POSAS (Patient and Observer Scar Assessment Scale) é atualmente traduzida para o português, validada e adaptada à cultura brasileira, além de poder ser utilizada para análise de cicatrizes lineares 62 . Contempla ainda a percepção do paciente e mostrou-se aceitável pela sua boa consistência interna ( medida pelo índice Alfa de Cronbach > 0,75), segundo o escore de confiabilidade de um questionário aplicado em pesquisa 63,64 .…”