Abstract
Introduction Functional disorders of the craniocervical region affect 77.78% of Brazilian teachers.
Among the most common instruments used to assess craniocervical disorders in a detailed
and objective way, none had been translated to Brazilian Portuguese and adapted to
Brazilian culture.
Objectives To translate to Brazilian Portuguese and to culturally adapt the Craniocervical Dysfunction
Index (CDI).
Method The first phase of the study consisted of the translation, synthesis, back-translation,
and review of the contents by a committee of experts, who developed a trial version
and sent all the steps to the original author. The trial version was applied to 50
teachers of an institution. The reliability and internal consistency were evaluated
by Cronbach α. For the validation, the Brazilian Portuguese version of the CDI was
correlated with the Visual Analogue Scale (VAS) domains for cervicalgia and evaluated
by Spearman ρ.
Result Some expressions were adapted to the Brazilian culture. Among the participants who
did not report neck pain in the VAS, 84.21% suffered from craniocervical dysfunction
acording to the CDI. Among the participants who reported neck pain in the VAS, 100%
suffered from craniocervical dysfunction according to the CDI. The CDI showed good
internal consistency and satisfactory reliability measured by Cronbrach α (α = 0.717).
There was a strong correlation between the CDI and the VAS score (ρ = 0.735).
Conclusion No difficulties were encountered in the translation and back-translation of the CDI,
and no problems were observed regarding the trial version developed; therefore, the
Brazilian Portuguese version of the CDI is a valid and reliable instrument to evaluate
the functional alteration of the craniocervical region.
Keywords
neck pain - questionnaires - school teachers
