Fig. 6From: Cement augmentation of the proximal femoral nail antirotation for the treatment of two intertrochanteric fractures - a comparative finite element studyVon-mises stress (Pa) distribution on PFNA when femoral head varus collapse at 2°. a and c: In non-augmented model, stress was concentrated at the proximal part of helical blade. b and d: In augmented model, stress was concentrated at the junction between helical blade and nailBack to article page