Fig. 5From: Biomechanical comparison of the femoral neck system versus InterTan nail and three cannulated screws for unstable Pauwels type III femoral neck fractureBiomechanical test setups. A Torsion test, the femurs were placed in an inclined fashion, torque around the central axis of the femoral neck was applied. B A-P bending test, the femur was placed horizontally, vertical compression force was applied to the front of the femoral head. C Axial compression test, femurs were positioned vertically in 10° adductionBack to article page