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Almost all patients randomized to the non-surgical intervention made it to the 6 month time point without surgical intervention - which is quite impressive. However, ultimately about one third of this cohort underwent surgical treatment after 6 months - with common findings including younger age and reduced asymmetrical reflexes on exam. Identifying additional distinguishing factors of this group would likely aid management guidance for prospective patients that reach 6 months of non-surgical management. In your experience, are there other factors that may predict patients that ultimately undergo surgery: such as gradual improvements in pain scores over the prior 6 months, responsiveness to epidural injections, compliance with activity/exercise regimen, initial preferences for surgery, opioid use, etc? Thanks for engaging in this novel forum!