Measurement of change in the mechanical properties of burned skin to therapist intervention with a vacuum device

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Study evaluated the measurements of a portable materials testing device before and after burn therapist intervention for closed burns. A recording was taken using a hand-held vacuum device to measure deformation of the skin in the same location prior to and following a treatment session with a burn therapist in an outpatient clinic at a tertiary burn center. Twenty-eight subjects with healed burns were evaluated. Statistically significant differences were noted in modulus and elasticity change between sheet and meshed split thickness autografts. Positive change in modulus was correlated with increasing therapy time, specifically for meshed grafts. Positive change in modulus was noted in therapy time greater than 48 minutes. Results demonstrate that quantitative measurement of the outcomes of burn therapies on the mechanical properties of healed burns is possible in an outpatient clinic setting. Improvement in the stiffness of burn scars was observed in treatment sessions that last at least 48 minutes.

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