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Title: Reliability and Validity of the Thai Version of the Modified Japanese Orthopaedic Association Score (mJOA score)
Authors: Sirichai Wilartratsami
Borriwat Santipas
Panya Luksanapruksa
Surin Tanapipatsiri
Visit Vamvanij
Faculty of Medicine, Siriraj Hospital, Mahidol University
Keywords: Medicine
Issue Date: 1-Jan-2021
Citation: Siriraj Medical Journal. Vol.73, No.1 (2021), 55-60
Abstract: © 2021. Siriraj Medical Journal. All Rights Reserved. Objective: To evaluate the reliability and validity of the Thai version of the modified Japanese Orthopaedic Association scale. Methods: Te modified Japanese Orthopaedic Association scale was translated into Tai language to create the Tai version of the Modified Japanese Orthopaedic Association (Tai-mJOA) scale. Translation was performed according to international standards using a forward-backward translation protocol. Translation was performed by 2 expert translators and 1 physician, and the final version was approved by an expert committee. Tai patients with cervical spondylosis with myelopathy were enrolled and evaluated using the Tai-mJOA scale, Nurick Grading, the Tai version of the Neck Disability Index (Tai-NDI), and the Tai version of the Short Form-36 (Tai-SF-36). Reliability and validity of the Tai-mJOA were assessed via comparison with the Nurick Grading and the Tai-NDI. Results: Ninety-two patients were included. Te most common compression level was C5-C6 vertebral disc. Cronbach’s alpha of the total Tai-mJOA showed excellent internal consistency (0.991). Te intraclass correlation coefficient (ICC) for test-retest reliability was 0.981 (95% confidence interval [CI]: 0.972-0.988). Regarding concurrent validity, the motor dysfunction score of the lower extremities and the total score of the Tai-mJOA were strongly correlated with Nurick Grading (r=0.825, r=0.712, respectively). Te total score of the Tai-mJOA was moderately correlated with the Tai-NDI (r=0.670). Conclusion: Te Tai-mJOA was found to be a valid and reliable tool for evaluating symptom severity in Tai patients with cervical spondylosis with myelopathy.
ISSN: 22288082
Appears in Collections:Scopus 2021

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