Reflex sympathetic dystrophy staging

RSD Category
I	Immediate - beginning within first 48 hours of event
II	Early - beginning 1 to 12 weeks from the initial event
III	Late - after 3 months, or with late trophic changes

Betcher's Classification of RSD
1	Pain, edema, vasomotor changes
2	1 + Pain aggravated by motion
3	2 + Trophic changes