When we suffer a bone fracture, the cast becomes an essential tool in the recovery process. This material used by doctors plays a crucial role in immobilizing and stabilizing fractured bones, allowing the healing process to take place optimally.

Its main function is to provide support and stability to damaged bones . By carefully wrapping the affected area with a layer of plaster, movement of the bone fragments is reduced, promoting proper alignment and speeding healing. Additionally, it provides protection to the surrounding soft tissues and helps reduce pain and inflammation.

The cast is mainly made from gypsum, a material widely used in the medical field. Gypsum is obtained from gypsum mineral rock, which is crushed and subjected to a firing process to remove water and obtain powdered calcium sulphate hemihydrate. This plaster powder is mixed with water to form a moldable paste , which is applied in several layers over a cotton bandage or cloth wrap.

The most common areas where the cast is applied are the arms and legs, as these extremities are prone to fractures due to falls or trauma. In addition, it is also used in wrist, ankle and finger fractures . In some cases, a cast may be applied to the trunk area, such as the torso, to provide additional support for rib fractures.

Although there are more modern alternatives such as plastic splints, the cast is still widely used due to its proven effectiveness and its affordable cost. Thanks to it, doctors can provide proper treatment and help patients recover faster and safer.