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- Talk
- Canada
A Canadian Spine Outcomes Research Network (CSORN) Matched-Cohort Study Comparing Lumbar Fusion and Disk Arthroplasty
Description
In this presentation, Samuel Yoon discusses a match cohort study conducted within the Canadian Spine Outcome Research Network, focusing on the comparison of lumbar disc arthroplasty (LDA) and lumbar fusion procedures. The aim is to evaluate long-term patient outcomes and satisfaction regarding these surgical options for degenerative spondylosis, a condition commonly associated with back pain.
Yoon highlights the lack of substantial Canadian literature on this topic, referencing predominantly U.S.-based studies that, while similar in results, tend to be small and influenced by commercial interests. A notable mention includes a Cochrane review that indicated the need for caution with LDA due to insufficient long-term follow-up data.
The study involved patients who underwent standalone or hybrid LDA from 2015 to 2019, matched with a cohort undergoing various lumbar fusion techniques during the same period. Exclusion criteria for the study included prior surgeries, active infections, and other systemic diseases affecting outcomes. Measures of effectiveness included pain improvement scores (Visual Analog Scale), outcome scores (OS Western disability index), and overall patient satisfaction at two years post-operation.
Results indicated no statistically significant differences in pain relief or functional outcomes between the two procedures at the two-year mark, with satisfaction rates reported at 86% for LDA and 82% for fusion patients. Yoon concludes by emphasizing the potential advantages of LDA in preserving spinal motion and reducing adjacent segment disease, while also acknowledging the need for longer-term follow-up to assess implant longevity and other influencing factors in patient outcomes.