Decubitus Ulcers Project
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Decubitus ulcers are localized areas of tissue-breakdown in the skin and the underlying tissues. Ulcers are more prevalent in subjects who are wheelchair-bound or bed-ridden. It is well known that mechanical loading is a major factor affecting tissue breakdown, which causes decubitus ulcers. However, the effects of combined loading on regional blood flow and trans-cutaneous oxygen levels have not been studied. Our research evaluated the changes in blood perfusion and transcutaneous oxygen levels in the skin when varying combinations of normal and shear loads were applied. Results indicated that blood flow and oxygen levels are significantly decreased when shear loading is applied in conjunction with normal loads. |
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