4.3 Article

Sacral Soft Tissue Deformations When Using a Prophylactic Multilayer Dressing and Positioning System: MRI Studies

Journal

JOURNAL OF WOUND OSTOMY AND CONTINENCE NURSING
Volume 45, Issue 5, Pages 432-437

Publisher

LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/WON.0000000000000461

Keywords

Magnetic resonance imaging; MRI; Pressure injury; Pressure ulcer; Prevention; Prophylactic multilayer dressing; Tissue tolerance; Turning and positioning system

Categories

Funding

  1. Molnlycke Health Care (Gothenburg, Sweden)

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PURPOSE: The sacrum is the most common location of pressure injuries (PIs) in bedridden patients. The purpose of this study was to measure the effect of specific pressure preventive devices on sacral skeletal muscle, subcutaneous fat, and skin tissue deformations. SUBJECTS AND SETTING: The sample comprised 3 healthy adults residing in a community setting in Tel Aviv, Israel. DESIGN: Descriptive, comparative design. METHODS: Tissue thickness changes of 3 healthy adults were measured using magnetic resonance imaging (MRI) in weight-bearing sacral skin, subcutaneous fat, and muscle. Changes in tissue thickness were compared under the following conditions: (1) lying supine on a rigid surface (unpadded MRI table), (2) lying on a standard foam mattress, (3) lying on a mattress after application of a prophylactic multilayer dressing, and (4) lying on a standard foam mattress with a prophylactic multilayer dressing and a positioning system. One-way analysis of variance and post hoc Tukey-Kramer multiple pairwise comparisons were used to compare outcomes. RESULTS: The mattress, the prophylactic multilayer dressing, and the turning and positioning device when applied together resulted in significantly lower deformation levels of each of the soft tissue layers (ie, skin, subcutaneous fat, and muscle separately) as well as of the total soft tissue bulk, with respect to the rigid MRI table (P < .05). CONCLUSION: Study findings suggest that a combination of preventive interventions may reduce the risk of developing a sacral PI.

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