Fig. 4From: Modified F configuration in the treatment of Pauwels type III femoral neck fracture: a finite element analysisThe stress of the femur and internal fixation in four models. a5, a6: the traditional inverted triangular cannulated screw model; b5, b6: the F-technique cannulated screw model; c5, c6: the modified F-technique cannulated screw model; d5, d6: the dynamic hip screw coupled with anti-rotational screw modelBack to article page