Cement augmentation of the proximal femoral nail antirotation for the treatment of two intertrochanteric fractures - a comparative finite element study

Table 5 Displacement of femur and PFNA (mm). The changing rates of maximum displacement, compared to non-augmented, are shown in parentheses

AO classification	Status	Maximum displacement of femur	Maximum displacement of PFNA	Cutting displacement of helical blade
31-A1.3	Non-augmented	4.30	1.91	2.31
31-A1.3	Augmented	3.26 (−24.2%)	3.05 (+ 59.7%)	N*
31-A2.2	Non-augmented	4.42	1.68	2.65
31-A2.2	Augmented	3.26 (−26.2%)	3.04 (+ 80.9%)	N

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