The studies to look at that best fit your scenario are for CRPS II or Causalgia since you clearly have nerve damage. CRPS I is less understood and more often misdiagnosed but, CRPS II requires objective (verifiable) nerve damage and as such, is better understood.

In my opinion the best information for treatment and info come from these doctors.

Dr. Silas Weir Mitchell
Dr. Hooshmand
Dr. Schwartzman

In addition to this there are two great YouTube videos done by Dr. Ian Carroll and Dr. Sean Mackey from Stanford University that you can find doing a simple google search - they are long but well worth the time!