Lumbar spinal stenosis (LSS) is a condition of narrowing of the spinal canal in the lumbar region that causes cauda equina syndrome. Surgery aims to restore patient’s function and quality of life. This study aims to determine the clinical outcomes of LSS patients after surgery at Arifin Achmad General Hospital Riau Province using the EQ-5D-5L questionnaire. A single-arm retrospective cohort s…