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Related Experiment Videos

Skin surface pressures under short leg casts

B M Marson1, M A Keenan

  • 1Department of Orthopaedic Surgery, Albert Einstein Medical Center, Philadelphia, Pennsylvania 19141.

Journal of Orthopaedic Trauma
|January 1, 1993
PubMed
Summary
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Fiberglass casts cause higher skin pressures than plaster casts, increasing ulceration risk. Modifying casts by bivalving or spreading significantly reduces pressure, enhancing patient safety.

Area of Science:

  • Orthopaedic biomechanics
  • Biomaterials science
  • Clinical measurement

Background:

  • Casting is a common orthopedic treatment for fractures and other injuries.
  • Excessive pressure under casts can lead to complications like skin ulceration.
  • Different casting materials and techniques may influence pressure distribution.

Purpose of the Study:

  • To compare skin surface pressures under plaster and fiberglass short leg casts.
  • To evaluate the effect of cast modifications (univalving, bivalving, spreading) on pressure.
  • To assess the impact of operator technique on cast pressure.

Main Methods:

  • Utilized electronic sensors to measure skin surface pressures.
  • Recorded pressures at various stages: initial casting, univalving, bivalving, and spreading.

Related Experiment Videos

  • Compared pressures between plaster and fiberglass casts and across different procedural modifications.

    • Main Results:

    • Fiberglass casts generated significantly higher pressures than plaster casts.
    • Cast bivalving and spreading led to significant reductions in measured pressures.
    • Operator technique influenced pressure readings, but fiberglass consistently showed higher pressures.

    Conclusions:

    • Fiberglass casts pose a greater risk of excessive pressure and potential skin breakdown compared to plaster.
    • Techniques like bivalving and spreading are effective in mitigating high-pressure risks.
    • Plaster casts may be preferable for patients with vulnerable skin or significant swelling.