I have an ortho PA in town who keeps sending me sympathetic blocks for joints that don't respond well to surgery. He insists that its all CRPS. He just sent another who recently had knee surgery and her pain continues, but she has no allodynia, color changes, reduced ROM, edema, etc. Its just plain knee pain. Anywho, this PA is so damn insistent that I want to put this out there to maintain my sanity: has anyone seen CRPS isolated to a proximal joint with no distal symptoms (for example, just symptoms at the knee with absolutely no ankle or foot symptoms whatsoever)?