Impact of multilayered compression bandages on sub-bandage interface pressure: a model

J Al Khaburi, E A Nelson, J Hutchinson, A A Dehghani-Sanij

Research output: Contribution to journalArticle

Abstract

BACKGROUND: Multi-component medical compression bandages are widely used to treat venous leg ulcers. The sub-bandage interface pressures induced by individual components of the multi-component compression bandage systems are not always simply additive. Current models to explain compression bandage performance do not take account of the increase in leg circumference when each bandage is applied, and this may account for the difference between predicted and actual pressures.

OBJECTIVE: To calculate the interface pressure when a multi-component compression bandage system is applied to a leg.

METHOD: Use thick wall cylinder theory to estimate the sub-bandage pressure over the leg when a multi-component compression bandage is applied to a leg.

RESULTS: A mathematical model was developed based on thick cylinder theory to include bandage thickness in the calculation of the interface pressure in multi-component compression systems. In multi-component compression systems, the interface pressure corresponds to the sum of the pressures applied by individual bandage layers. However, the change in the limb diameter caused by additional bandage layers should be considered in the calculation. Adding the interface pressure produced by single components without considering the bandage thickness will result in an overestimate of the overall interface pressure produced by the multi-component compression systems. At the ankle (circumference 25 cm) this error can be 19.2% or even more in the case of four components bandaging systems.

CONCLUSION: Bandage thickness should be considered when calculating the pressure applied using multi-component compression systems.

Original languageEnglish
Pages (from-to)75-83
Number of pages9
JournalPhlebology
Volume26
Issue number2
DOIs
Publication statusPublished - 1 Mar 2011

Fingerprint

Compression Bandages
Bandages
Pressure
Leg
Varicose Ulcer
Leg Ulcer
Ankle
Theoretical Models
Extremities

Keywords

  • Algorithms
  • Bandages
  • Biophysics/methods
  • Compression Bandages
  • Humans
  • Leg Ulcer/therapy
  • Models, Statistical
  • Models, Theoretical
  • Pressure
  • Reproducibility of Results
  • Varicose Ulcer/therapy

Cite this

Al Khaburi, J ; Nelson, E A ; Hutchinson, J ; Dehghani-Sanij, A A. / Impact of multilayered compression bandages on sub-bandage interface pressure: a model. In: Phlebology. 2011 ; Vol. 26, No. 2. pp. 75-83.
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Impact of multilayered compression bandages on sub-bandage interface pressure: a model. / Al Khaburi, J; Nelson, E A; Hutchinson, J; Dehghani-Sanij, A A.

In: Phlebology, Vol. 26, No. 2, 01.03.2011, p. 75-83.

Research output: Contribution to journalArticle

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AU - Nelson, E A

AU - Hutchinson, J

AU - Dehghani-Sanij, A A

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N2 - BACKGROUND: Multi-component medical compression bandages are widely used to treat venous leg ulcers. The sub-bandage interface pressures induced by individual components of the multi-component compression bandage systems are not always simply additive. Current models to explain compression bandage performance do not take account of the increase in leg circumference when each bandage is applied, and this may account for the difference between predicted and actual pressures.OBJECTIVE: To calculate the interface pressure when a multi-component compression bandage system is applied to a leg.METHOD: Use thick wall cylinder theory to estimate the sub-bandage pressure over the leg when a multi-component compression bandage is applied to a leg.RESULTS: A mathematical model was developed based on thick cylinder theory to include bandage thickness in the calculation of the interface pressure in multi-component compression systems. In multi-component compression systems, the interface pressure corresponds to the sum of the pressures applied by individual bandage layers. However, the change in the limb diameter caused by additional bandage layers should be considered in the calculation. Adding the interface pressure produced by single components without considering the bandage thickness will result in an overestimate of the overall interface pressure produced by the multi-component compression systems. At the ankle (circumference 25 cm) this error can be 19.2% or even more in the case of four components bandaging systems.CONCLUSION: Bandage thickness should be considered when calculating the pressure applied using multi-component compression systems.

AB - BACKGROUND: Multi-component medical compression bandages are widely used to treat venous leg ulcers. The sub-bandage interface pressures induced by individual components of the multi-component compression bandage systems are not always simply additive. Current models to explain compression bandage performance do not take account of the increase in leg circumference when each bandage is applied, and this may account for the difference between predicted and actual pressures.OBJECTIVE: To calculate the interface pressure when a multi-component compression bandage system is applied to a leg.METHOD: Use thick wall cylinder theory to estimate the sub-bandage pressure over the leg when a multi-component compression bandage is applied to a leg.RESULTS: A mathematical model was developed based on thick cylinder theory to include bandage thickness in the calculation of the interface pressure in multi-component compression systems. In multi-component compression systems, the interface pressure corresponds to the sum of the pressures applied by individual bandage layers. However, the change in the limb diameter caused by additional bandage layers should be considered in the calculation. Adding the interface pressure produced by single components without considering the bandage thickness will result in an overestimate of the overall interface pressure produced by the multi-component compression systems. At the ankle (circumference 25 cm) this error can be 19.2% or even more in the case of four components bandaging systems.CONCLUSION: Bandage thickness should be considered when calculating the pressure applied using multi-component compression systems.

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