Modelling the effect of repositioning on the evolution of skeletal muscle damage in deep tissue injury

Biomechanics and Modeling in Mechanobiology
Jan DemolJos Vander Sloten

Abstract

Deep tissue injury (DTI) is a localized area of tissue necrosis that originates in the subcutaneous layers under an intact skin and tends to develop when soft tissue is compressed for a prolonged period of time. In clinical practice, DTI is particularly common in bedridden patients and remains a serious issue in todays health care. Repositioning is generally considered to be an effective preventive measure of pressure ulcers. However, limited experimental research and no computational studies have been undertaken on this method. In this study, a methodology was developed to evaluate the influence of different repositioning intervals on the location, size and severity of DTI in bedridden patients. The spatiotemporal evolution of compressive stresses and skeletal muscle viability during the first 48 h of DTI onset was simulated for repositioning schemes in which a patient is turned every 2, 3, 4 or 6 h. The model was able to reproduce important experimental findings, including the morphology and location of DTI in human patients as well as the discrepancy between the internal tissue loads and the contact pressure at the interface with the environment. In addition, the model indicated that the severity and size of DTI were reduced...Continue Reading

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Citations

Mar 19, 2014·Acta Biomaterialia·Markus BölRoland Kruse
Jan 28, 2015·Journal of Rehabilitation Research and Development·Ayelet LevyAmit Gefen
May 6, 2016·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Yuanjun SangYun Luo
Nov 20, 2016·Journal of Back and Musculoskeletal Rehabilitation·Yukiyo ShimizuYasuyoshi Wadano

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