18/01/2022
CAST
A cast is an orthopaedic material that holds a broken bone (fracture) in place and prevents the area around it from moving as it heals. Casts also help prevent or decrease muscle contractions and help keep the injured area immobile, especially after surgery, which can also help decrease pain.
CAST MATERIALS:
The hard, outer layer of a cast is made of either plaster or fiberglass. Cotton and other synthetic materials are used to line the inside of the cast to make it soft and provide padding around bony areas, such as the ankle, wrist, or elbow. This also pads nerves and blood vessels.
Plaster casts can be molded to your child’s arm or leg. They come in one color, white.
Fiberglass casts are more durable and lightweight than plaster casts. They come in a variety of colors and designs.
WATER PROOF CAST
Special waterproof cast liners may be used under a fiberglass cast so the cast can get wet without falling apart. These waterproof liners can only be used after the injured area has stopped swelling, usually a week or two after the initial injury. Waterproof casts can’t be used after surgery or when pins are used because of the risk of infection.
Your child can take a bath, shower, and even swim in a pool with a waterproof cast. However, they should not sit in a hot tub, go to the beach, or swim in the ocean or a pond while wearing their waterproof cast.
Waterproof casts must get completely submerged in water daily to keep the lining of the cast in good condition. They should be removed by an experienced clinician or technician who understands the specific demands of waterproof casts.
Split (Bivalve) Casts
For some injuries, the first cast may be split in order to allow room for swelling. The sides of the bivalve cast will be taped with cloth medical tape. The cast is secured from the inside at the top and bottom, so if the tape starts to peel, the cast should not fall apart.
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