Hi, recently I was in a car accident and fractured my L1 vertebrae and had surgery to stabilise the spine, 6 screws and 2 rods were used. After about 4 weeks I didn t have that much pain, I went for a private physio session and half an hour afterwards I had an extreme pain down my right leg which lasted about an hour and a half then calmed down a lot. This happened two weeks ago and since then I have had this pain, sometimes it is worse than others, it seems to get especially sore when I m sitting. Do you know what this could be?