Mechanism Plaster is a shell, frequently made from plaster or fiberglass , that encases a limb (or, in some cases, large portions of the body) to stabilize and hold anatomical structures—most often a broken bone (or bones), in place until healing is confirmed. It is similar in function to splint
Uses To support fractured bones, controlling movements of fragments and resting the damaged tissue To stabilize and test joints in ligamentous injury To support and immobilize joints and limbs post cooperatively until healing is occurred To correct a deformity To ensure rest of infected tissue
Advantage Versatile, readily applied and fashioned Reasonably comfortable Absorbs secretions to some extent Fairly strong Radio translucent Cheap and easily available
Disadvantage Plaster cast require more care than the other type of cast. They can't get wet as this cause the plaster to crack or disintegrate To bathe with plaster cast you'll need to wrap it in several layers of plastic They also take several days to fully harden Plaster cast tend to be heavier
Precautions Keep the plastered body part raised to prevent swelling, especially for the first 48 hours. On average, plaster casts stay on for about six weeks, depending on your age, general health and type of fracture. Even once the plaster is removed, the bone is still healing so you should take care for at least another month.