Since radiculopathy is due to the nerves functioning improperly, the Depakote and Topamax could have masked the radiculopathy.

I suggest you not settle with WC until you have a better understanding of your continuing symptoms.

Does your state allow you to find your own doctor after a time period has elapsed? Some states do.

btw, Much of my knowledge comes from using google then vetting the source of information. Google Topamax and Depakote and side-effects and you will find interesting information. The official sources are often limited but the patient blogs and such will have better information.