Objectives: The Swiss spinal stenosis questionnaire (SSSQ) is a standard tool to assess the severity of symptoms, physical function characteristics, and satisfaction in patients suffering from lumbar spinal stenosis. The aim was to perform a cross-cultural adaptation and validation of the Arabic version of the SSSQ and test it on Saudi patients with lumbar spinal stenosis. Methods: One hundred and twenty participants were recruited for this cross-sectional trial from January 2021 to December 2022. The cross-cultural adaption procedure utilized the American Association of Orthopedic Surgeon Outcomes Committee Method. All patients completed the Arabic version of the SSSQ and SF-12 preoperatively and 6 months postoperatively. The intra-class correlation coefficient (ICC), Cronbach alpha (CA), and Pearson correlation coefficient were used to verify the validity and internal consistency. Results: We analyzed the results of 120 patients. The average age was 64 ± 6.4 years (55–75 years). The SSSQ’s total domain CA was 0.90. On the other hand, the functional disability scale (Q8-12) and the symptom severity scale (Q1-7) had corresponding CA of 0.88 and 0.92, respectively. The ICC was 0.92, 0.93, and 0.84 for all items, symptom severity scale, and functional disability scale, respectively. High Pearson correlation coefficients were found between the SF-12 score and the total score of the SSSQ (0.69). Conclusion: The Arabic version of the SSSQ is a reliable and valid instrument and can be applied to evaluate the surgical outcome of patients with lumbar spinal stenosis.
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