Are all pressure ulcers avoidable?

A quality of care debate centers on whether pressure ulcers result from factors largely dependent on caregivers, or whether pressure ulcers result from factors associated with patient morbidity. A reduction in incidence, defined as the development of a new pressure ulcer, is the focus of prevention strategies. Yet epidemiological data demonstrates a stability in the incidence of pressure ulcers despite drastic improvements in understanding of pressure ulcers, increased regulatory oversight, and improvements in technologies available for prevention of pressure ulcers. The explanation for this stable incidence of pressure ulcers includes a failure of known effective preventive treatment to be applied or the failure of prevention strategies to be effective in spite of being applied. No intervention strategy has been reported that consistently and reproducibly reduces the incidence of pressure ulcers to zero. The published data on prevention of pressure ulcers do not support an assumption that all pressure ulcers are preventable. An effective prevention strategy demonstrated to eliminate pressure ulcers across healthcare settings is lacking.