How to Diagnose Algodystrophy
Algodystrophy is known as reflex sympathetic dystrophy and it also has been known by other names. These various synonyms reflect the poorly understood etiology of this condition. Algodystrophy is an excessive reaction of joints and surrounding tissue to trauma. It usually occurs after a minor injury or surgery and also is associated with clinical conditions such as diabetes and Parkinsonism.
Instructions
-
-
1
Observe the initial symptoms of algodystrophy. This often includes pain variably described as aching, burning, shooting or throbbing and minor stimuli are often very painful.
-
2
Look for delayed symptoms of algodystrophy. Edema and stiffness also are present in the affected joint with atrophy of the hair, nails and skin for 30 percent of patients within 10 days of onset.
-
-
3
Check for signs of autonomic dysfunction. These include red or blue discoloration in the extremities, insensitivity to temperature or abnormal sweating.
-
4
Review imaging studies. Algodystrophy is diagnosed clinically so laboratory tests are not helpful. Plain radiography may show swelling in the soft tissue and loss of bone density in the affected area for 80 percent of these cases. Look for endosteal, intracortical or subperiosteal bone resorption on the radiographs. The resorption may be irregular and the juxtocorical and subchondral bone may show surface erosion.
-
5
Conduct additional tests. Algodystrophy is indicated if an IV of phentolamine or other sympatholytic intervention provides pain relief. The rising sweat output can be measured with thermography.
-
1
