Three-dimensional printing technology facilitates customized pelvic prosthesis implantation in malignant tumor surgery: A case report

This report presents a case of the application of a customized three-dimensional (3D) printed pelvic prosthesis for the treatment of pelvic malignant tumor in one patient. The pelvic mass was scanned by computer tomography (CT) to obtain two-dimensional data and a 3D digital model was reconstructed using Mimics software. The physical model was then printed using a 3D printer. The tumor resection procedure was pre-designed with the personalized pelvic prosthesis prefabricated. After the tumor was removed, the pelvic prosthesis was successfully implanted and an artificial total hip replacement and pelvis and hip joint reconstruction were performed to restore the shape and function of the patient’s pelvis and hip joint. At the 6-month follow-up, the X-ray results indicated that the prosthesis and the pelvis matched well. The application of computer-aided design and 3D printed custom-designed pelvic prosthesis for the treatment of pelvic tumors may be a viable method for a more accurate, reliable, convenient surgery, with a better clinical outcome.