Biomechanical Study of Porous Osteotomy Block in Evans Osteotomy for Flat Foot Correction Based on Finite Element Method

ased on the finite element method, the effect of porous osteotomy block on the biomechanics of surrounding joints in the treatment of flat foot by Evans osteotomy is studied. The finite element method is used to simulate the osteotomy block for Evans osteotomy to correct flatfoot. The effect of Evans osteotomy on the foot force line is analyzed from the biomechanical point of view. The osteotomy blocks were divided into solid osteotomy blocks and porous osteotomy blocks, and normal foot and flat foot were used as control groups. The results show that Evans osteotomy can effectively improve the force line of the foot to correct the flat foot. Compared with the solid osteotomy block, the porous osteotomy block can also play a corrective effect and reduce the stress shielding effect when used for Evans osteotomy to correct the flat foot.