Thank you so much for your reply !
Just FYI I had a nerve root block on L5S1 a few days ago and for a brief period (2-3 hours) ALL my foot and back/coccyx pain went away – but then came back with a vengeance . However, because it did disappear for this short time, the doctor concluded that these nerve roots ( I guess especially S1 as it is swollen) are the cause of my problems.
On another note, the ‘debris’ showed up on an MRI just 2.5 weeks after surgery so that is too early to be scar/inflammatory tissue right ? Will the contrast enable them to specifically identify what kind of material it is ?
Thank you for all your help – I really appreciate it !