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What Is a Splint?

A splint is a support device made of hard material that keeps an injured area from moving.

What Do Splints Do?

Splints hold bones and joints in place so they can heal after a broken bone, injury, or surgery. Splints also can help with problems that affect the joints (such as arthritis) or muscles (such as a weakness or paralysis of a muscle).

What Are Splints Made of?

A splint can be plastic, metal, plaster, or fiberglass.

When Do Doctors Use Splints Instead of Casts?

Doctors use splints for broken bones if the area around the injury is swollen. When there's swelling, splints are a better choice than casts because they are easy to loosen, if needed.

Health care providers usually replace a splint with a cast on a broken bone after the swelling goes down. The cast will provide more protection while a broken bone heals.

How Do I Take Care of a Splint?

  • Tell your parent if the splint hurts or is uncomfortable.
  • Do not get the splint wet. A wet splint might not support the bone, and also can cause a skin rash.
  • Do not stick objects or pour lotions or powders inside the splint.
  • Don't scratch the skin inside the splint.
  • Check the skin at the edges of the splint for blisters, sores, or redness.

Bathing With a Splint

If your doctor told you to keep the splint on during bathing, make sure it doesn't get wet.

Here's how to keep the splint dry during bathing:

  • Baths are better than showers because it is easier to keep the splint dry in a bath.
  • Before the bath, cover the splint with a plastic bag. Seal the top with a rubber band.
  • Keep it completely out of the water by propping it up on the side of the tub.
  • If the splint gets splashed, gently blow air into it from a hair dryer on the cool or fan-only setting. If some of the splint goes under water or gets very wet, your mom or dad should call your doctor.

Your mom or dad also should call your doctor if:

  • You have a lot of pain.
  • Your fingers or toes are swollen, changing colors, or feel numb.
  • The splint feels too tight or too loose.
  • The splint is damaged.

Looking Ahead

Take care of the splint so it stays in good condition. Soon, you'll be back to doing everything you enjoyed before you needed a splint!

Reviewed by: Richard W. Kruse, DO, Susan M. Dubowy, PA-C
Date Reviewed: Jun 1, 2018

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