Your post is lacking a lot of very important information. You should consult with your Attorney or consider retaining one.
We offer general concepts, but you should give ALL your facts to a licensed Attorney in your state before you RELY upon any legal advice.
You should immediately consult with a workers' compensation attorney, if you don't already have one. This seems like a complex issue that will require some form of legal fight. Most workers' compensation attorneys, in most states, work on a contingent fee basis, so they will only charge you a percentage of the benefits they obtain for you. Good luck.
Mr. Corson, as always, cuts right to the heart of the issue. We don't have enough information to answer what may be a very complex question. You need to sit down and talk to a W.C. attorney.
Find a good one here at www.avvo.com or at www.caaa.org. CAAA is the association for attorneys here in CA who represent injured workers.