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Measuring and Modeling Contractile Drying in Human Stratum Corneum
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[Sacral Skin Elasticity - Establishing a Non-Invasive Mechanical Method for Measurement].

S Dahmann1, P B Lebo2, D Görlich3

  • 1Klinik für Plastische, Hand- und Wiederherstellungschirurgie, KlinikumStadtSoest, Soest.

Handchirurgie, Mikrochirurgie, Plastische Chirurgie : Organ Der Deutschsprachigen Arbeitsgemeinschaft Fur Handchirurgie : Organ Der Deutschsprachigen Arbeitsgemeinschaft Fur Mikrochirurgie Der Peripheren Nerven Und Gefasse : Organ Der V
|August 23, 2016
PubMed
Summary

A new, non-invasive method accurately measures sacral skin quality and mobility. This technique provides objective criteria for assessing discomfort from sacral scars, particularly after pilonidal sinus surgery.

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Area of Science:

  • Biomedical Engineering
  • Dermatology
  • Clinical Measurement

Background:

  • Sacral scars, often from pilonidal sinus surgery, can cause discomfort during sitting or straining.
  • Objective criteria are needed to assess scar quality and related discomfort.
  • Existing methods for skin elasticity measurement may not be suitable for the sacral region.

Purpose of the Study:

  • To develop a mechanical, non-invasive, fast, and cost-neutral method for measuring skin distensibility and mobility in the sacral region.
  • To establish benchmark values for scar-free sacral skin in a healthy population.
  • To identify factors influencing sacral skin quality, such as age, weight, and sex.

Main Methods:

  • A non-invasive technique was developed to measure skin distensibility and mobility.
  • Four measurement points were marked vertically in the lumbar and sacral regions.
  • Measurements were taken while participants bent forward and stood upright to assess skin movement and distension.

Main Results:

  • The sacral-lumbar skin distension quotient (80-93%) was found to be independent of age and BMI.
  • Sacral skin mobility ranged from 11 to 18 mm, with a slight negative influence from higher BMI.
  • Benchmark values for scar-free skin were established in 100 healthy participants.

Conclusions:

  • The proposed measurement method allows for intra-individual comparison of lumbar and sacral skin distension, providing valid findings on skin and scar quality.
  • The method is practical, cost-neutral, and generally available, offering an advantage over existing elasticity measurement devices.
  • This technique can aid physicians in objectively assessing sacral skin quality and discomfort.