• Candy H Y Lai and Cecilia W P Li-Tsang.
• Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, HKSAR, China.
• Burns. 2009 Sep 1; 35 (6): 845-51.

IntroductionPressure monitoring is crucial for effective pressure therapy. Precise and reliable interface pressure measurement system, however, remains unavailable in current practice.MethodologyThis is a validation study on the application of a recently developed device, the Pliance X System, for static interface pressure measurement. Sensor properties were evaluated through series of laboratory tests in the first phase of the study. Phase II was a clinical study using the Pliance X system to differentiate the loading generated on the patients' scars through additional inserts and pressure garment.ResultsResults showed high test-retest and inter-rater reliability (ICC > or = 0.995) with good linearity (adjusted R-square=0.997) by measuring standard weights. The maximum deviation between the measurement generated by the sensor and the sphygmomanometer cuff was +/-1.451 mmHg. Results in the clinical trial revealed its discriminant ability in distinguishing different levels of pressure loading on patients with scars (p<0.01).ConclusionThe commercially available pressure measurement system was found to be a reliable tool for measurement of low interface pressure under static condition.

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