Pressure necrosis
Areas subject to pressure or trauma during walking or bed rest are the first to show evidence of trophic change, ulceration or gangrene.
These include:
- heels - lift heel from the bed, look at bottom, back and lateral side
- malleoli
- skin over the head of the fifth metatarsal
- toes - tips and in between, where the nail of one toe rubs against the side of the next
- ball of the foot
Signs of pressure necrosis include:
- skin thickening
- blistering
- ulceration
- discolouration - blue, purple, black (gangrenous)
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