Finite element analysis of self-locking cannulated compression anti-rotation blade

Femoral reality geometric model was created from CT images which were modified by image segmentation, refined using biomedical simulated software mimics 10.0, and femoral NURBS curves were reconstructed using automation reverse engineering software Geomagic Studio. Using finite element analysis software ANSYS 10.0 to simulate femoral neck fracture stabilized with self-locking cannulated compression anti-rotation blade at standing on one leg, calculation were performed according to contact conditions of bone-implant. The stress distribution of implant and the displacement distribution of femur were calculated. The maximum MISES stress of self-locking cannulated compression anti-rotation blade was 133.179-182.417 MPa, and the maximum displacement of femur was 0.367-0.864 mm. Self-locking cannulated compression anti-rotation blade exhibits fine fixation stability for femoral neck fracture.