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New Cast materials

A cast is a rigid dressing used to protect an injured body part, and keep it from moving. It is used with a fracture or dislocation. There are two major types of cast materials, plaster and fiberglass.

Plaster is inexpensive and easy to use, but can be fragile. It can fall apart if it gets wet. It may require additional applications if it weakens or starts to fall apart.

Fiberglass casts are made of synthetic material, which is more expensive than the plaster cast. However, fiberglass casts are stronger and lighter. They tend to dry more quickly and, if they get wet, do not fall apart. They are also available in bright colors, which can be more appealing to young children.

If your healthcare provider recommends a fiberglass cast, make sure that you dry it if it gets wet. If you do not, you may develop a rash or infection under the cast. However, even though you can get it wet, you should not put the cast under water. Do not go swimming while wearing a fiberglass cast. This is too much water for the cast, and may damage the cast. A damaged cast may not be able to support or stabilize your injury. Bathing can be made easier by covering the cast with a plastic bag.

Make sure the healthcare provider gives you specific information on cast care. Most casts are removed within two to six weeks of application, though some may need to be kept on for a longer period of time.

Regardless of the type of cast used, it is important to notify the healthcare provider if the following symptoms exist:

• increasing pain

• increasing swelling, especially below the cast

• numbness, tingling or a "pins and needles" sensation

• a cool, cold or discolored limb, such as the fingers or toes

• a foul odor coming from the casted area

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