Wow, how could that happen? This is a very serious injury that requires long-term treatment. You won't be able to do your old activities for a long time, as your arm will take several months to heal. I hope that your boss has reimbursed you for the damages. Because when I had a similar situation, I had to go to the workers compensation lawyer greensboro because my supervisor did not want to pay the compensation. A good lawyer helped me get the money.