I had a two level PLIF on Sept 11. I have had two previous lumbar fusions, this was a repeat of the 2010. Failed to fuse. I read that everyone is sittng. My surgeon said no sitting except bathroom. Unless recliner fully reclined. I was told because they want no pressure on the fusion. I am 4 weeks out and am wondering how far I should be walking each time. The last surgery was a minimally invasive surgery so it is different this time. I just don't want to mess anything up at this point. Any thoughts?