I had a nerve block for an operation on my ankle (for tarsal tunnel syndrome) on 3/17. Two days later I had intense pain in my leg above my knee. I went to the emergency room where they did an ultra sound to rule out a blood clot. The pain is now centralized in my upper thigh and groin area, and without significant pain meds, can reach a 10 on a 1-10 scale. The block was injected in my knee, and although it was to deaden the tibial nerve, is there any chance this is what's causing the pain in my upper leg? I can't move from a prone position without causing pain.