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Several types of casts are available to help injuries heal. Your health care provider will decide what type of cast will work best for your injury.
A plaster cast is made from gauze and plaster strips soaked in water. These are wrapped around the injured body part over a stockinette and cotton padding. As they dry, the strips harden. The cast takes 24 to 48 hours to harden fully.
A synthetic cast is made from fiberglass or plastic strips. These are wrapped around the injury over a stockinette and cotton padding. Synthetic casts can be different colors. A synthetic cast is lighter than plaster. It dries in a few minutes, but may take a few hours to harden fully. Synthetic stockinettes and padding are also available. These can get wet for bathing or swimming.
A cast brace is made of hard plastic. Soft pads inside the brace compress (push against) the injury. The brace is held in place with Velcro strips and can be removed. A cast brace may be used right after the injury occurs. Or, it may be used toward the end of healing, after another cast has been removed.
A splint (also called a half cast) is made from slabs of plaster or fiberglass that hold the injury still. A bandage is wrapped around the injury to hold the plaster slabs in place. Splints are often used when swelling is present, or you have a risk of swelling. In most cases, the splint is soon replaced with another type of cast.
Contact your health care provider right away if you have any of these signs and symptoms after you have a cast or splint put on:
Increased pain or tightness from the cast
Numbness, tingling, or burning below a cast
Excessive swelling below a cast
Loss of active movement of fingers or toes below a cast
Cast aids help you get around safely and comfortably. If you need any of these aids, your health care provider will teach you how to use them:
A sling keeps your injured arm still and helps carry your cast.
A cane helps you balance and put less weight on an injured leg.
A walking cast is a cast you can walk on. You may wear a cast shoe over your cast to keep it clean and protected.
A walker helps you balance and keep weight off an injured leg. Some walkers have wheels and can be pushed as you walk. Others are lifted and placed down as you step.
Crutches help you balance and keep weight off an injured leg. When using crutches, support yourself with your hands and upper arms. Don’t rest crutches in your armpits. (Doing so could damage the nerves leading to your arms and hands.)
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