Biomechanical analysis of the 4-cm femur defect reconstruction with three-dimensional-printed porous Ti6A14V implants. (A) Three-point bending strength of the samples in the groups (n = 4). (B) Stress distribution of the implant-bone complex under (ii) 1000 N, (iv) 2000 N, and (vi) 3000 N. The displacement distribution of the implant-bone complex under (i) 1000 N, (iii) 2000 N, and (v) 3000 N **p < 0.01, *p < 0.05.