Prisms to Shift Pain Away: Pathophysiological and Therapeutic Exploration of CRPS with Prism Adaptation

Figure 7

Visual representation of pain evolution for one patient. This patient developed CRPS following a trauma in a car accident with no fracture but some tissue lost on her hand back for which she had a skin graft. The initial mapping of pain (inclusion) was surprisingly nonmonotonous, with idiopathic design of pain intensity areas, and predominantly involved the palm even though this side was not concerned by surgery. The evolution of pain evaluation is depicted from the first (D0) to the last (D4) day of the intervention. A demonstrative reduction of surface and intensity of pain was observed over all hand territories. This pain mapping in space and time allows observing that the most painful territories do not recover last and that there is no clear anatomofunctional rationale for the shape and size of individual areas or for their temporal evolution. At the follow-up consultation, a nearly normalized mapping was produced by the patient, except for a tiny area in the palm and a portion of the hand back side’s scar.