Stopped: In light of the ongoing COVID-19 pandemic and its impact on clinical trials
This is a pivotal Randomized Clinical trial to compare the safety and effectiveness of the Pedicle Lengthening Osteotomy Procedure with implantation of the Altum® Device to open surgical decompression and Transforaminal Lumbar Interbody Fusion (TLIF) in patients with symptomatic, one or two level lumbar spinal stenosis (LSS) and one level grade I degenerative spondylolisthesis requiring surgical treatment.
Age range
40 Years – 80 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Zurich Claudication Questionnaire (ZCQ)
Timeframe: 24 months
No reoperations
Timeframe: Index level
Adjacent level surgery
Timeframe: 24 months
Adverse events
Timeframe: 24 months
Radiological Success
Timeframe: 24 months