severe constant pain, burning, tingling distal to injury. Pitting edema, bluish color, cool in the extremity, reduced motor function, abnormal sympathetic stimulation-edema.
Stage 1= about 3 months onset of burning at site, edema, limited mobility.
Stage 2= 3-6 months, sever diffuse pain, brawny edema, atrophy, osteoporosis, brittle nails.
Stage 3= irreversible changes, stiff joints, ankylosis (joint capsule thickens), flexor tendon contractures.