The Validation and Verification of the Nottingham Clavicle Score in the Turkish Population

ABSTRACT Objective: The purpose of this study was to evaluate the Turkish validation and verification of the Nottingham Clavicle Score (NCS). Study Design: A validation study. Place and Duration of the Study: Alanya Training and Research Hospital, from April 2017 to December 2021. Methods: Sixty-eight patients who underwent surgery due to clavicle fracture or acromioclavicular separation were included in the study (12 females, 56 males; average age: 37.1±13.3 years). The Turkish version of the NCS (NCS-Tr) was designed, which described the stages recommended by Beaton. Each patient completed the NCS-Tr twice at 7-10 day intervals to evaluate the test-retest reliability based on the interrater correlation coefficient, and Cronbach’s alpha was evaluated for internal consistency. Additionally, the Oxford Shoulder Score (OSS), Disabilities of the Arm, Shoulder, and Hand (DASH), Constant Score, and SF-36 Health Survey tests were completed by each participant to assess the correlation with the NCS-Tr. Results: The main score of the NCS-Tr was detected as 79.71 ± 20.37. The other mean scores of CS, OSS, and DASH were found as 84.14 ± 21.47, 38.34 ± 12.43, and 17.84 ± 22.47 respectively. The translation and adaptation of the NCS-Tr for a Turkish context required no major cultural adaptation. Internal consistency was high (Cronbach’s alpha, 0.933). Test-retest reproducibility was excellent (q = 0.941, p