Treatment of pelvic bone sarcomas represents one of the most controversial areas of orthopedic oncology due to the size of these sarcomas and the complexity of the pelvic anatomy, which increase the difficulty of resection and reconstruction. Recent advances in orthopedic oncology have improved the pelvic surgical technique through the rapid prototyping, a manufacturing technology where computerized image data are used to create high-precision 3D models of the pelvis. Based on these models, cutting guides and custom-made prostheses are produced facilitating resection, reconstruction and implantation. In particular, 3D printed prostheses are promising, but as a young technology there have been few studies utilizing it and exhibiting short follow-up periods.