A 5-year Superion™ IDS Clinical Outcomes Post-Approval Evaluation (SCOPE)

Key Inclusion Criteria:

• 45 years of age or older when written informed consent is obtained

• Persistent leg/buttock/groin pain, with or without back pain that is consistentlyrelieved by flexion activities (example: sitting or bending over a shopping cart).

• Diagnosis of degenerative spinal stenosis of the lumbar spine, defined as thenarrowing of the midline sagittal spinal canal (central) and/or narrowing betweenthe facet superior articulating process (SAP), the posterior vertebral margin (lateral access), and the nerve root canal (foraminal).

• Subject signed a valid, IRB-approved informed consent form (ICF) provided inEnglish.

• Subjects, who, in the opinion of the Clinical Investigator, are able to understandthis clinical investigation, cooperate with the investigational procedures and arewilling to return for all the required post-treatment follow-ups.

• Able to independently read and complete all questionnaires and assessments providedin English

Key Exclusion Criteria:

• Axial back pain only.

• Fixed motor deficit in lower extremity(ies) due to LSS.

• Has any pain-related diagnosis, medical/psychological condition or external factorsthat, in the investigator's medical judgment, might confound reporting of studyoutcomes (e.g. history of pelvic pain, anginal pain, chronic migraine, involved inlitigation, workmen's compensation, spinal tumor)

• Participating (or intends to participate) in another drug or device clinical trialthat may influence the data that will be collected for this study