Casts are supportive devices used to help keep an injured bone in place while it heals. Splints, sometimes called half casts, are a less supportive, less restrictive version of a cast. Casts and ...

If you need a cast for a broken arm, to mend after knee surgery, or for another injury, you may wear it for several weeks or months. The cast keeps your bone or joint from moving so it can heal. But ...