The adoption of 3D printing technology in hip surgery marks a substantial leap forward in orthopedic surgery. This innovative approach allows for the creation of patient-specific implants that significantly enhance fit and functionality. In our study, we demonstrate the different uses of 3D-printing techniques and their preoperative, intraoperative, and postoperative use in hip surgery for the treatment of complex acetabular defects. Moreover, the clinical outcomes of 3D-printed implants have been discussed. By overcoming many limitations of traditional manufacturing methods, 3D printing facilitates the production of complex geometries and highly porous structures that improve implant fixation and promote better bone ingrowth. We believe that in the upcoming years, with the help of new technical improvements, the use of 3D-printed implants will increase.