Complex regional pain syndrome: From diagnosis to rehabilitation

Table 1 Orlando (International Association for the Study of Pain) criteria for complex regional pain syndrome

Criteria 1	The presence of an initiating noxious event or a cause of immobilisation
Criteria 2	Continuing pain, allodynia, or hyperalgesia with which the pain is disproportionate to any inciting event
Criteria 3	Evidence at some time of oedema, changes in skin blood flow, or abnormal sudomotor activity in the region of pain (can be sign or symptom)
Criteria 4	This diagnosis is excluded by the existence of other conditions that would otherwise account for the degree of pain and dysfunction

Table adapted from Merksey et al[158].