Fig. 1From: The choice of internal fixator for fractures around the femoral trochanter depends on area classificationFractures around the femoral trochanter classified by area classification. Fractures within only the trochanteric part are classified as type 3, fractures extending from the trochanteric part to the basal neck are classified as type 2–3, fractures extending from the trochanteric part to the subtrochanteric part are classified as type 3–4, and fractures extending from the basal neck to the subtrochanteric part are classified as type 2–3–4Back to article page