© 1979 British Society for Rheumatology
research-article |
AN OBJECTIVE ASSESSMENT OF THE SHEEPSKINS USED FOR DECUBITUS SORE PROPHYLAXIS
Oxford Orthopaedic Engineering Centre, Nuffield Orthopaedic Centre Headington, Oxford OX3 7LD
The mechanical properties of four commonly used sheepskin-like interface materials have been investigated to assess their relative effectiveness in preventing decubitus sores. The samples were resilient and silky varieties of natural sheepskin, resilient wool woven into a fabric backing and a pure polyester simulation of sheepskin. Consideration of the factors which cause skin breakdown suggested that the relevant mechanical properties to be measured were compressibility, frictional behaviour, ability to absorb water vapour and porosity under load. The four samples exhibited similar ability to distribute load; the polyester material produced greatest friction; the resilient wool fabrics showed both greatest porosity under load and ability to absorb water vapour. It was found that the latter was the more important property for keeping the patient's skin dry. The general conclusion arising from this work is that resilient natural sheepskins are the best interface for the prevention and management of decubitus sores.