- 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