The sorptivity and durability of gelling fibre dressings tested in a simulated sacral pressure ulcer system
Web of Science
AuthorLustig, A; Alves, P; Call, E; Santamaria, N; Gefen, A
Source TitleInternational Wound Journal
University of Melbourne Author/sSantamaria, Nicola
Document TypeJournal Article
CitationsLustig, A., Alves, P., Call, E., Santamaria, N. & Gefen, A. (2020). The sorptivity and durability of gelling fibre dressings tested in a simulated sacral pressure ulcer system. INTERNATIONAL WOUND JOURNAL, 18 (2), pp.194-208. https://doi.org/10.1111/iwj.13515.
Access StatusOpen Access
Wound-dressing performances are affected by exudate viscosity, resistance to flow because of gravity, and bodyweight loads, the level of which is related to the body position. Here, we focussed on two dressing properties: (a) Sorptivity-the ability of dressings to transfer exudate away from the wound bed by capillary action-and (b) Durability-the capacity of dressings to maintain their integrity over time and during their removal. Both properties are critically important for avoiding further tissue damage but require the development of new laboratory tests for their measurement. A computer-controlled phantom of an exuding sacral pressure ulcer has therefore been developed and used to compare the performances of Exufiber (Mölnlycke Health Care) vs an alternative market-leading dressing. Sorptivity was determined using weight tests, and durability was measured through tensile tests of the used dressings. For a supine configuration, the Exufiber dressing demonstrated ~three times higher sorptivity and better durability, withstanding ~five times greater strain energy than the other product before failure occurred. This work paves the way for quantitative, standardised testing of dressings in all aspects of exudate management. The reported tests are further suitable for testing dressing combinations or how dressings interact with negative pressure wound therapy.
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