Arnold Besselaar, Daniel Green, Andrew Howard
Simple oblique (>30°) or spiral fractures of the femoral shaft are classified 32-D/5.1. They may occur in the proximal, middle, or distal third of the femoral shaft.
These fractures are often a result of trauma with a rotational force.
They are axially unstable.
Oblique middle-third fracture
Long oblique proximal-third fracture