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consensus conference and their comments were used to create the final definitions. Pressure Ulcer Definition. A pressure ulcer is localized injury to the skin and/or underlying tissue usually over a bony prominence, as. a result of pressure, or pressure in combination with shear.
Pressure ulcers are accepted to be caused by three different tissue forces: Prolonged pressure: In most cases, this pressure is caused by the force of bone against a surface, as when a patient remains in a seated or supine position for an extended period.