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Advisor(s)
Abstract(s)
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 computercontrolled 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.
Description
Keywords
Chronic wound Pressure injury Primary and secondary dressings Tissue phantom
Pedagogical Context
Citation
Lustig, 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. Int Wound J. 2020;1–15. https://doi.org/10.1111/iwj.13515
Publisher
Wiley