- Discussion:
- limited angulation will have greater effect on loss of motion than will more distal forearm fractures;
- the combination of a proximal radial frx, along with an ulnar shaft fracture is known as a Monteggia equivalent (see
pediatric Monteggia frx);
- Deforming Forces:
- above insertion of
pronator teres;
- proximal fragment of radius is supinated & flexed because of unopposed action of
biceps brachii &
supinator,
and the distal fragment is pronated by the action of the
pronator teres &
pronator quadratus muscles;
- to obtain alignment of the fracture, the distal fragment should be supinated;
