You can "interview" some wc attys to see what they say.. don't sign anything until you check them out after talking with each one...

If he had treatment in the past for same thing, and there are records on it, it will be harder to prove claim overall. wc uses any past injuries to blame if possible.

It is hard to predict what long term effects there may be if any , just the way it is..

Usually they won't declare anything as , or close a claim final until the symptoms are stable.. and that often takes time.

My multiple RSI claim took 2 yrs+...