I had an elbow arthroscopy 3 weeks ago, and they ended up moving my ulnea nerve to the inside of my arm, releasing the tendants and shaving some spurs off my bone. Now before my op i was able to straighten my arm but now I can't, I get so far and try to force it and it feels like something is pushing against it and causes me a fair bit of pain.

Is this normal and will I be able to straighten my arm again?