Abstract
Objectives: The aim of this study was to investigate the validity and reliability of the Turkish version of the 'Patient-Rated Ulnar Nerve EvaluationÂ’(PRUNE-T) scale.
Patients and Method: 51 patients diagnosed with cubital tunnel syndrome were included to this study. PRUNE scale was translated into Turkish by using cross-cultural adaptation process which can be used for the follow-up. All patients filled PRUNE-T, Q-DASH, SF-12 forms. HGS were measured. Two hours after the evaluation, the PRUNE-T scale was refilled. The internal consistency reliability of the scale and its subscales were examined by Cronbach Alpha coefficient. The reliability of the scale was evaluated with test-retest reliability method. The compliance validity of the scale was evaluated by examining its relationship with Q-DASH and SF-12. The construct validity was evaluated according to the variables of the HGS. The relationships between variables were evaluated by Spearman's rho coefficient. Intergroup comparisons were performed using Wilcoxon signed-rank test.
Results: Cronbach's alpha coefficient was calculated as 0.919 in the overall total reliability analysis of the PRUNE-T. In test-retest reliability, the correlation coefficient was 1 for the total score (p <0.001). No statistically significant difference was observed between the scores of test-retest measurements (p> 0.05). There was significant correlation between Q-DASH score and SF-12 score with PRUNE-T (p <0.001). There was a significant relationship between the HGS and the scores of usual activities subscale and total score of PRUNE-T (p <0.001).
Conclusion: The results of our study showed that the PRUNE-T questionnaire which can be used for the follow-up of the clinical condition and treatment outcomes was valid and reliable in ulnar nerve entrapment. PRUNE-T scale is an easy-to-perform scale with a short completion time, which can be used for the follow-up of the clinical condition and treatment outcomes.

Key words: Ulnar Nerve Evaluation, reliability, validity, patient-rated,