Sub-bandage pressure

Lightweight confoiming Apply very low levels of sub-bandage pressure and are used to hold dressings in place... 

P = sub-bandage pressure (mmHg), T = bandage tension (kgQ, N = niunber of layers applied, C = circumference of the limb (cm), and IV = bandage width (cm). 

It must be pointed out that the constant value of 4620 was initially calculated as 4630, and subsequently changed to the value given in the formula. Sub-bandage pressure is therefore directly Hoportional to bandage tension and number of layers applied, but inversely proportional to the radius of curvature or limb circumference and the width of the bandage. 

Most legs, however, are not circular in cross-section. Consequently, the pressure plied by a bandage will vary significantly around the circumference at any given point on the leg. High sub-bandage pressures will be found over bony prominences such as nutlleolus (ankle bone) and tibia crest (shin). 

A Sa thy, S Hayes, S R Dodds, Measuring sub-bandage pressure conqxuing the use of pressure monitors and pulse oximeters , J Wound Care, 200615 125-128. 

A D Tayor, R J Taylor, A comparison of sub-bandage pressures produced with two multi-layer bandaging systems , J Wound Care, 1999 8 444-448. 

S Thomas, The use of the laplace equation in die calculation of sub-bandage pressure. Online, www.wDrldwidewounds.com 003 une/rhomas/Liq>lac6-Bandages.html 2003. 

Light support Apply moderate sub-bandage pressure and is used to prevent oedema or for the treatment of mixed aetiology ulcers. 

Kumar B, Das A, Alagirusamy R. Analysis of sub-bandage pressure of compression bandages during exercise. J Tissue Viability 2012 21(4) 115—24. 

Thomas S. The production and measurement of sub-bandage pressure Laplace s Law revisited. J Wound Care 2014 23(5) 234—46. 

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