Comparative study of intertrochanteric fracture fixation using proximal femoral nail with and without distal interlocking screws

Figure 1 Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association classification of 31-A fractures. Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association classification as follows: (1) A1: Simple two part, lateral cortex remains intact; (2) A2: Comminuted withpostero-medial fragment,lateral cortex remains intact; and (3) A3: line extend acrossboth medial and lateralcortices,include reverseobliques.