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Layers of thickness of casting material
1%
11/2064
Water temperature used to dip casting material
2%
35/2064
Placing the limb on a pillow during the cast curing process
6%
129/2064
Fiberglass overwrapping of plaster casts
31/2064
Type of fracture pattern
89%
1846/2064
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Causes for thermal burns during cast application are multi-factorial. Halanski et al. evaluated the internal and external temperature changes that occured during cast application on limb models. They found that excessively thick plaster, dip-water temperature of >24 degrees C, placing the limb on a pillow during the curing process, and fiberglass overwrapping all increase the risk for thermal injury. Lavalette et al. in a similiar study using a glass tube filled with water to simulate an extremity found that if the temperature of the dip water was higher than 24 degrees Celsius, thickness of the cast was greater than eight ply, and if the pillow was used to limit the dissipation of heat from the cast, temperatures became high enough to cause skin burns.
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