- See: Unstable Intertrochanteric Fractures:

    - Type I:   non displaced, stable intertrochanteric s comminution;

    - Type II:  stable, minimally comminuted, but displaced frx
            - 36% of intertroch frx

    - Type III: has a large posteromedial comminuted area and are unstable;
            - 28% of intertroch frx

    - Type-IV:  consists of an intertrochanteric frx w/ a subtroch component.
            - 15% of intertroch frx;

- Reversed Obliquity Frx

Classification and treatment of trochanteric fractures.