Bahadır OCAKTAN, Mehmet Ali DEVECİ, Mehmet Ali TOKGÖZ, Aliekber YAPAR, Aykın ŞİMŞEK

Cross-cultural adaptation and validation of the Turkish version of the Musculoskeletal Tumor Society scoring system in patients with musculoskeletal tumors

Objective: This study aimed to translate and cross-culturally adapt the musculoskeletal tumor society (MSTS) scoring systeminto Turkish and to determine the reliability and validity of the translated version for the functional evaluation of patients withmusculoskeletal tumors.Methods: A total of 36 patients (16 women, 20 men; mean age=36.6; age range=13–75 years) who underwent limb-salvage surgeryowing to benign aggressive or malignant musculoskeletal tumors were included in the study. Translation and back translations of theMSTS were performed according to the published guidelines. Short form (SF) 36 physical component, Western Ontario and McMaster Universities Arthritis Index (WOMAC), disabilities of the arm, shoulder, and hand (DASH), and range of motion scale (ROMS)that were previously analyzed for Turkish validation were used for validity. Reliability of MSTS Turkish version was evaluated bycalculating test-retest reliability and internal consistency. Intraclass correlation coefficient (ICC) was used to evaluate the inter-observer consistency and test-retest reliability. Alpha coefficient (Cronbach’s alpha) was used to evaluate the internal consistency.Results: It was observed that total MSTS score has a strong negative correlation with DASH (r=−0.689; p

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