Advances in 3D-printed lattice structures are reshaping orthopedic implant design by enabling implants that better replicate the mechanical and biological properties of bone. Lattice architectures allow engineers to precisely control porosity, stiffness, and load distribution, helping reduce stress shielding while promoting bone ingrowth. The article highlights key factors for improving lattice performance, including optimized unit cell geometry, material selection, and manufacturing consistency during additive production. Computational modeling and simulation are also playing an important role in refining these structures before fabrication. As additive manufacturing technologies mature, improved lattice designs are expected to enhance implant integration, durability, and patient-specific customization, reinforcing the growing importance of engineered porous structures in next-generation orthopedic devices.