I have no idea on this but saw your other post about other treatments. I was wondering if you have been to a pain clinic? They maybe able to direct you better. Like I know for me it helped push me out of bed. I also wonder my doc wants to put a tunnel catheter so that I can do extreme reabilitation with less pain in my legs. I have been told for myself and not saying you that I have to be on my feet as much as I can and the pain will feel worse now but will help. I'm still fearful but pushing. I'm going for another anastesolgist apt for other things possible but less invasive then the catheter. Have you looked into something like that for your pain control?I know in your past post you were nervous about the meds but have you given any more thought?