Radius/Ulna, Distal, extra-articular fracture ulna, radius intact	0,12% of the total 0,97% of the radius/ulna 2,20% of the segment

4 fractures 5,9% group 50%M, 50%F

61 fractures 89,7% group 66%M, 34%F

3 fractures 4,4% group 33%M, 67%F

Styloid process

Metaphyseal simple

Metaphyseal multifragmentary

	These are extra-articular fractures of the distal ulna, with the radius remaining intact.				Ref. D. L. Fernández, J. B. Jupiter. Fractures of the distal radius. Springer, 1995. Surgeon. DF.
	The sole characteristic shared by all of the fractures lumped together into the A1 group is the location of the fracture. The .1 subgroup is an apophyseal pull-off fracture whose treatment is by tension band internal fixation (Kirschner wires and wire loop). The .2 and .3 subgroups are diaphyseal-metaphyseal fractures, either		simple or multifragmentary, caused by a direct trauma, that must be treated by internal fixation with a one-third tubular plate following the general principles of internal fixation: reduction, interfragmentary compression and neutralization.

		preoperative preoperative + 1 year + 1 year