Have any of you had a fusion after having RNY gastric bypass? I am 6 wks out from gastric bypass and will be having L4,5 TLIF in 6 wks. I malabsorb calcium and take the recommended supplementation, but this still makes me nervous. Neurosurgeon says there is no way to know if or how it will affect the fusion. And I know from my own research that blood calcium levels do not reflect whethter or not you have enough calcium for your bones, because your body will steal calcium from bones for the life sustaining functions it serves. Anyway. My BMI is still over 40 so I am trying to get it down below that before surgery, because all the research I have seen says that over a BMI of 40 the risk of failed fusion, especially hardware failure, increases. I have so many concerns and was wondering if any of you have gone through this or have any of you been obese and had spinal fusion, as I am still obese and probably will be at the time of surgery. Any thoughts or comments welcome.
And by the way I have already been off work 3 months and if I'm not back in the next 3 months I will be fired. My neurosurgeon wants me to lose as much weight as possible of course, but does not want me to wait too long since I have already had the herniation on nerves since March.