World Health Organization Disability Assessment Schedule II (WHODAS-II) for Patients With Symptomatic Lumbar Spinal Stenosis

The main purpose of this study is to determine the measurement characteristics of WHODAS-II (World Health Organization Disability Assessment Schedule II), as well as to analyze its correlation with symptomatic lumbar spinal stenosis (Visual Analog Scale, VAS), disability (Spanish version of the Roland Morris Questionnaire, RMQ), fear avoidance beliefs and attitudes (Spanish version of the FAB Questionnaire, FABQ), and quality of life (SF-12). Measurements will be taken at baseline and 6 days later (day 7).