1 Introduction topenlarge
These fractures are often displaced and unstable and should not be treated with simple splintage. However, if the fracture is undisplaced or minimally displaced, casting is sufficient.
2 Long arm cast topenlarge
The purpose of the cast is to stabilize the fracture in addition to providing symptomatic relief during the period of fracture healing.
Although there is no convincing evidence, comminuted metaphyseal fractures are often unstable and application of a long arm cast controls forearm rotation, and at least from a theoretical perspective, will decrease the risk of displacement.
The long arm cast is applied according to standard procedure:
Splitting the cast
If a complete cast is applied in the acute phase after injury, it is safer to split the cast down to skin over its full length.