Check your state website for work comp/employment sections.

I really suggest interviewing with a few work comp attys to get some input and hear what they suggest for you. Take notes.. for comparison afterwards.
Don't sign right away with any but talk with them and them look them up online to find more info.
Many will talk themselves up and make promises, just to get you to sign with them, but then they may only do the minimum to get an easy % of any payout..
So just be wary when talking to them..

I don't know how long you were on that job, or if it was high pay.. but something like this is very hard to prove if comp & the company decide to play hard ball.

Usually an employer does not have to hold a job for an injured worker after a year has passed of being off the job.

This is your life & your future so at least talk with a few attys before the meeting if you can . or at meeting if they offer something.. ask for some time to consider.. then
see some attys..

WC can always argue that the RSD may have happened due to some other activity, or that the RSD is a condition that happens in very rare cases and can't be proved to have happened because of the original injury..
This is where your own dr & any long time notes of treatment would be handy.. that no problem relating to same area was ever treated..
but that is all stuff a good atty would ask about..

I don't know your age , if older they may mention early retirement , if a long time employee..